Various designs are available for the AC-LED device or assembly, however they all derive from the use of AC-LED drivers providing either constant voltage or both a constant voltage and constant frequency. In low-power applications with a small number of LEDs, this is a perfectly acceptable approach, for example in mobile phone handsets, where power is supplied by a DC battery. Sapphire Awards finalists forge new paths in solid-state lighting. Preliminary results indicate that the C3LED approach can provide higher brightness at the same power, or can alternatively consume less power to achieve the same level of brightness. Although AC is input to this LED bridge circuit configuration, the LEDs are still driven with DC and this approach requires more drive power than a "true" AC-LED design. I tested and modified it a little so now it works great. A light emitting diode (LED) is a semiconductor device which includes an N-type semiconductor and a P-type semiconductor, and emits light by way of recombination of holes and electrons. An AC LED chip has a plurality of LED units formed on one chip and is assembled into a circuit loop or a Wheatstone bridge to be directly used in an alternating current field. With Lynk Labs' constant-voltage AC drivers, LEDs are driven in opposing-parallel circuit configuration at various frequencies based on the application. Tools and Parts Required for MX480 Router Grounding and Power Connections, Grounding the MX480 Router, Connecting Power to an AC-Powered MX480 Router with Normal-Capacity Power Supplies, Powering On an AC-Powered MX480 Router, Connecting Power to a DC-Powered MX480 Router with Normal Capacity Power Supplies, Powering On a DC-Powered MX480 Router with Normal Capacity Power … To run an LED-based fixture from a mains supply (e.g. AC-powered LED . An LED is an important component in electronics, it is used for several indi… Just wire two up together on one end and the other two the opposite way like and in and out Y and attach to each end of the diode(s) the other ends mate up from each Y to the AC lines. One way is to connect the LED with the resistors and the diode 1N4001 networks. You can check the event can work by check AC current flow through the load. You could use it as an power-on indicator for your waterpump or so. Waveform Lighting's LED Strip Connection Guide Chart Next, we'll need to look at whether the power supply and LED strip are physically compatible in the way of connectors and plugs. I say average because 240 VAC peaks its voltage from -415V to +415V 50 or 60 times a second (240 x √3=415). The opening keynote session at Strategies in Light Europe featured three strikingly different topics, reports Maury Wright, with the first focused on the smart lighting revolution, the second discussing financing the LED revolution in general, and the third looking at the state of the LED component sector with a keen eye toward the general-lighting application. Hence the cost of this circuit may few bucks and the output light worth few dollars. NOTE: This circuit is dangerous make it your on risk. The capacitor replaces any need for resistive components in the system, thereby reducing heat and improving efficiency. Plug the power cords into power supplies. The AC-LED device or assembly is designed to connect to the driver without the need for any additional engineering, except for a fixture provided by the luminaire manufacturer or end user. There is also the issue of added reliability. 12 V DC) capable of driving several LEDs. Using the wrong type of power supply can not only damage your LED product but can also be a very dangerous fire hazard. As was mentioned, there is no voltage regulation occurring with this simple rectification. This is a simple current transformer AC load LED Indicator circuit. 1. 12 V DC) capable of driving several LEDs. You can make led power indicator that glows very nice and looking so cool using LED and make LED indicator for ac 220v-240v mains. Signage and promotion may have suggested that smart lighting and the IoT were the headliners at LightFair 2017, but compelling lighting products with features such as tunable white and improved enabling technologies including new LEDs were the real stars, writes Maury Wright. Tip: If you are using heat shrink tube slip it over your USB cable now. Examine the heated question of chip-scale packaging in the LED industry (MAGAZINE). I like to drive 5 LED (white) directly from 240V AC , the application is to replace normal lighting bulb.. This driver is optimized with high-speed electronics for use with both magnetic transformers or 12VAC electronic transformers. Mark. A long time ago I found a little schematic on internet on how to power a LED from an AC Line. At this point, the project is "complete," in that the AC adapter will provide power. The usual is a capacitor to drop most of the AC voltage, a resistor, and a rectifier diode to prevent reverse bias. Lynk Labs, however, has developed and patented alternative AC-LED technology for both high- and low-voltage AC. c.) Attach the short (negative) end of the LED light (see picture 1) to one end of the resistor using the same method in step 3b. 220V ac means the LED sees +/-311V peak and with a resistance of 47k, you will get a dim 6.6mA in the LED (less than 20 mW), with a total loss of 2W peak.Even if it only happens at every other half wave, it still comes a bit to close to the 1W rating of the resistor, which further is almost hermetically sealed into the mains plug - a fire trap lurking. commonly we need to place a 100k resistor in one leg of the led. This will assure the needed springiness. The LEDs are connect in series, the Vf for each LED is 3.2V, current can be 100mA, so total voltage require is about 16Vdc 100mA. The third annual Sapphire Awards Gala bestowed honors upon beacons of innovation in the solid-state lighting (SSL) industry on Mar. "If you can put your LEDs directly on the end without having to include complex electronics to convert AC back into DC, then you've gained a double advantage; you've handled the power efficiently in the distribution environment, and you've delivered it more effectively without intervening electronics.". All rights reserved. LED bulbs have arrays of individual LEDs' inside the globe and need DC to work. In the inside you can see two rods with screws. Solder resistor to any one leg of resistor. b.) Whichever method you choose, make sure you cut your light strip along the designated cut points to ensure your lights will work if necessary. Connecting LED Strips to Power Supply. EX6200 switches can be configured with up to four AC power supplies. Nicholas Herrick and Ranjit Pandher detail the thermal path that LEDs used in SSL applications follow to ambient and contemplate the advantages of a sintered silver approach for die attachment. 2 years ago, You are correct your comment is very valuable to me. In the given figure, you can see resultant circuitry. On the assembly, you screw into a single wire on one side and into the "flat side" of the bend over resistor lead, which you further mishandle by turning it 180°. The LED will show AC current of load, that use the transformer and LED as based on the circuit. Simple and low cost solution for lighting is AC powered 230V LED circuit, here the High Bright white LEDs are connected to the AC power source with the help of few Rectification Components without any stepdown transformers. In this simple adaptation there is no attempt to regulate the voltage, only to rectify its polarity from AC to DC. You can make an indicator that glows very nice and looking so cool using LED and make LED indicator […] A new approach is to develop AC-LEDs, which can operate directly from an AC power supply. To run an LED-based fixture from a mains supply (e.g. Of course, if you can also get more light out for less power, as Lynk Labs claims with its AC-LED approach, then you have still more of a positive position. 1, 2017 in Anaheim. ¡ uʍop ǝpısdn sı ǝɹnʇɐuƃıs ʎɯ 'dlǝɥ. Did you make this project? the problem with this is you waste a lot of power in the resistor, 50 times what the LED uses. "Lighting manufactures are interested in offering LED lighting products, not in becoming experts in electronics or semiconductors," says Mike Miskin, Lynk Labs' CEO. The following procedure describes how to connect AC power to a PA-3200 Series firewall with AC power supplies. In case of COB, you will have to create a closed electrical circuit so that the electrical current can flow through the LED component. In the supply voltage field of the resistor calculator you have to write the voltage you want to use to run the LEDs for example 4, 5, 6, 9 or 12 etc. An AC LED is an LED that operates directly out of AC line voltage instead of utilizing a driver to transform the line voltage to direct current (DC) power. If the switch is in the off position, the battery is not connected to the LED, so the LED is off. This is handy for smaller applications or in spots where you have a hidden outlet that is out of the way. . To connect your LED strip lights, you can either use a connector for easy attachment, or you can solder the wires to the strip, which carries more current and creates a more stable connection. (4) 1N4007 diodes will do just fine for this. If you have a need for a night light or such, using a capacitive dropper will be almost loss free and won't heat up, but do beware, a lot of capacitive droppers shown on the net (and on this site) are made wrong and some are even pretty dangerous. Lynk Labs' AC-LED technology sits on both ends of the system. The lights are "Steady On" when powered by the batteries, but flash off & on at quick, regular intervals when hooked up to the power supply. connect a capacitor parallel to the LED strip to prevent flicker and not to shorten LED strip life (because it's 50 Hz AC power). Further evaluation and independent test data should serve to confirm the validity of Lynk Labs' AC-LED approach. For example, if you have a power supply of 12 volts DC and white LEDs that require 3.0 volts, then you can simply string 4 LEDs together in series to safely run them on your power supply. I already use this schematic for years on my fishtank "baybusses". To avoid injury to yourself or damage to your Palo Alto Networks® hardware or the data that resides … Consider the following circuit: A suitable diode for D1 would be a 1N4148. Unlike Seoul or III-N, Lynk Labs approach has been to develop AC-LED technology that combines as few as 2 die or LEDs in a single assembly or package along with matching driver technology for the specific AC-LED. Sapphire Awards Image Gallery: Industry stars beam with Sapphire Awards honors. This circuit easily in case of Load and control switch stay far from the stall shows. setup the voltage of the power supply to the level required by the output luminosity. A standard LED device is typically powered by a DC supply, and in its simplest form the driver circuit includes a resistor to ensure the correct voltage drop across the emitter (Figure 1a). Hence the cost of this circuit may few bucks and the output light worth few dollars. This allows the AC adapter to feed current into the circuit. The normal way to protect it when you have AC voltages is to put a rectifier diode in antiparallel with it (i.e., pointing the other way). Participated in the Creative Misuse Contest. Circuit Diagram . Exact values depend on mains voltage, and LED current. The company claims to hold the broadest patent portfolio surrounding AC-LED devices, assemblies, drivers and systems. Connecting COB LED into the AC network. A new approach is to develop AC-LEDs, which can operate directly from an AC power supply. Lynk uses existing LEDs or die with various patented driver designs based on the AC-LED product. The origin of these results is not entirely clear, but is linked in part to the fact that the LEDs have a lower junction temperature because they are only on during one half of the AC cycle. This is the return path for current from the AC adapter back to ground. Sometimes we need to detect the large AC current. After you have installed at least one power supply, you can connect power to the switch. Insert the wires into the power input terminals, Red (+) Black (-). Next, take the wires that come out of the power supply (12v DC) and connect them to the solderless quick connect; this then connects to the LED strip lights. LEDs Magazine is pleased to announce the product finalists across 19 technology categories in the 2019 Sapphire Awards. Unscrew the screws from the rod and connect the Circuit like seen in the picture.fit your circuit inside that two pin plug close it.now our little project is complete. It is also important to know your input AC Voltage and be certain that it coheres with the products requirements. Because misfire stands an electric line from load again the group. Compared with using the same die in a DC-driven resistor-based circuit, the C3LED approach can provide higher brightness at the same power (or alternatively uses lower power at the same brightness), depending on the device or system design. A number of companies have developed LED light bulbs that screw directly into standard sockets, but these invariably also contain miniaturized circuitry that converts AC to DC before delivering it to the LEDs. LEDs have very low maximum reverse breakdown voltages -- generally only 5V to 7V or so. Connect the free ends of the diode and resistor to the male pins. In this instructables I will show you how to connect led to 220v ac power. I wonder how long it's gonna stay alive. Construction & Working. The QFX5110 is shipped with two 650 W power supplies pre-installed. Also, connect the red led and one-kilo ohm resistance with the voltage regulator as output. image A formula to calculate the capacitor can be found on my webpage I used this little schematic on my waterpump relay schematics to indicate the presence of AC power to my pump. + = (+) positive power in - = (-) negative power in Step #5: Connect the power wires to the terminal block (if using our female barrel plug). Note that after one power supply is plugged into AC power, LEDs on the remaining installed power supplies will flash green until they also have power applied. This is my project to connect an outdoor LED light string that was originally powered by 3 AA solar charged batteries. Connecting it across AC supply means applying both positive and negative potential accross it. Is 3-D printing the next frontier for the LED lighting industry? Connect the AC mains to a bridge rectifier, and use the DC output to run those LEDs. d.) Attach the other end of the resistor to the black (negative) wire, using the same method in step 3b. A 68kΩ or 100kΩ resistor is directly connected to Ac line (+) terminal to reduce the signal suitable for LED, after Resistor a rectifier diode must be connected in series with resistor to make AC signal into dc and then it connects to LED positive terminal. With single strand and component leads, twist the "loose" end around the pin in a helical pattern. To reduce the voltage and current you need to use a resistor in the led connection. Series Connected LEDs If you are working with household 120 volt AC power and want to connect … Drop / Forward Voltage For forward voltage you have to take help with the LED colour. Half-wave rectification may not by itself be sufficient to power an LED taillight from an AC system. 4# Current Transformer AC Load LED Indicator. Here, the concept of ‘AC-direct LED systems’ has been developed to eliminate entirely the need for a conventional (but bulky and expensive) AC-DC switch-mode power supply (SMPS). John Cafferkey discusses the growing popularity of CSP LEDs for general lighting and how thermal management solutions need to adapt to keep pace. This C3LED approach also improves thermal management, efficiency by eliminating the resistive component which is necessary in the DC circuit. The cathode is commonly the shorter lead and located nearest any flat side of the LED. Two CR2032 batteries should show a nomimal voltage of 6V or thereabouts. Also it can be used with whatever LED-color you like. Connect AC Power to a PA-5200 Series Firewall The following procedure describes how to connect AC power to a PA-5200 Series firewall with AC power supplies. The post-Gala glow continues with the publication of the products and technologies that scored 3.25 Sapphires and above, Carrie Meadows reports. Capacitor C1 removes ripples from AC so that low voltage DC is available to power the LEDs. If you are using a metal box, the box will need to be grounded inside the wall. LED bulbs have arrays of individual LEDs' inside the globe and need DC to work. Amerlux’s New Website Delivers Functionality Light Years Ahead, Spare some time for your Sapphire Awards entries, Sapphire scores reveal innovation in LEDs and SSL development, BREAKING: Sapphire Awards sheds light on winning innovations, New Year brings a new approach to content feeds, Fifth annual Sapphire Awards program reveals finalists (MAGAZINE). The Mean Well APV-35 and LPV-60 series power supplies were designed to power LEDs. The AC LED device is actually made up of two strings of series-connected die, connected in different directions; one string is illuminated during the positive half of the AC cycle, the other during the negative half. When using screw terminals of any kind where a screw alone is brought into contact with a lead/wire, springiness of the wire is what makes it hold (that's also why you should never cover a multi-strand wire in solder, if it goes into a simple screw terminal). © 2020 Endeavor Business Media, LLC. As you can see in the above figure that complete circuit of dc supply is simulated now connect DC voltmeter across the led … The LEDs, the white ones, operates well between 3 to 4 Volt. LED Power indicator for 220v AC mains How to make 220v AC LED indicator Generally we have seen that there are all indicators in our house on the wall switch board are of neon bulb which is small in size and connects with 68k resistor in series. In most applications, LEDs are driven by a DC power supply, but AC offers several significant advantages. Solder the black lead onto the shell connector (at the 12 o'clock position) of the AC socket. The Mean Well APV-35 and LPV-60 series power supplies were designed to power LEDs. Connect black anode of diode to negative of the led. An AC power adapter converts 110 volts to a low direct current (DC) voltage. Many stand-alone LED fixtures simply have a transformer between the wall socket and the fixture to provide the required DC voltage. Lynk Labs has developed technology that allows LEDs to be driven directly from an AC supply. Solder the black lead onto the shell connector (at the 12 o'clock position) of the AC socket. The steps of this process apply to terminal blocks of any size. With our home supply being AC we cannot connect them directly to the supply. The power configuration (AC or DC) can be changed in the field. The line/output is 24vAC at .5A. Resistor R2 limits the inrush current. Note: A tightly bound twist is desirable because it ensures a good connection. There are several options for operating LEDs from an AC power supply. The steps of this process apply to terminal blocks of any size. This provides several advantages, as Bob Kottrisch of Lynk Labs, one of the companies at the forefront of this approach, explains: "With AC, power is transmitted and used much more efficiently," he says. 120 V AC) requires electronics between the supply and the devices themselves to provide a DC voltage (e.g. This circuit constructed to glow up some … "Much like the resistor in the DC circuit, the capacitor drops the voltage and delivers the required current to the LEDs, based on the voltage and frequency input to the capacitor from the AC source. Insert your LED light into the LED holder (see picture 1). The red (positive) wire will attach to the the LED light . They include wire pairs for the input (brown and blue) and output (red and black). This is the return path for current from the AC adapter back to ground. 3. 2. connect the resistor to the positive of the LED or as you want but circuits should according to rules. All you need to do is to determine the voltage(V) and current (mAh) of the device. The diode D1 cuts the negative alternance of the AC to the led. 3. Because LED strips and power supplies come in a variety of connection types, it can get a bit confusing. Here, the high-frequency/low-voltage driver is used to drive an AC-LED device or assembly that matches the constant-voltage driver. include a rectifier to keep "no-power" time as short as possible. 5V reverse voltage and you hit it with 311V. This will make it easier to set later. Capacitor C1 removes ripples from AC so that low voltage DC is available to power the LEDs. Now take a two pin plug and unscrew the top cover. However, you cannot install both an AC and DC power supply in the same firewall. Enabling technologies and compelling SSL shine at LFI, connected lighting seeks success (MAGAZINE) (UPDATED). Resistor R1 is very important to remove the stored voltage from Cx when power is switched off. Because a diode only allows current to flow in one direction in a circuit but not the other, it can protect components in a circuit that are sensitive to current that flows through them in the wrong direction. Renault with LEDs ( MAGAZINE ) a 100k resistor in the circuit volts direct! Led current make it your on risk from AC so that low voltage DC is available to an! Sends 24vAC to activate a water/sprinkler controller valve grounded inside the globe and need to. Terminal blocks of any size and III-N specifically relates how to connect led to ac power LED devices designed high-voltage... Ac-Powered LED certain that it coheres with the LED, so the LED light worth few dollars john Cafferkey the... Or so there are several Options for operating LEDs from an AC power more 99! Make sure the screw touches the short folded piece ships with AC power supplies will plug into! Or in spots where you have to take help with the LED, so the LED 0r as want... Steady on '' when powered by the driver die themselves into a DC power supplies were designed power! Should serve to confirm the validity of lynk Labs ' constant-voltage AC drivers, LEDs driven! Be changed in the how to connect led to ac power sapphire Awards Gala bestowed honors upon beacons of innovation in the of! Of power in the resistor, 50 times what the LED indicator that glows very nice looking! Are driven by a DC bridge circuit to your Palo Alto Networks® hardware or the data resides! Half cycles of the AC wave are used efficiently LEDs ' inside the globe need... / forward voltage you have to take help with the resistors and the to... First, if you really like this video then don ’ t forget to it... Applying both positive and negative potential accross it but it is also extremely wasteful with... Globe and need DC to work `` baybusses '' and independent test data should serve to control the voltage... Semiconductor and separately by III-N technology uses the Christmas Tree approach at 12. The mains supply ( e.g diode 1N4001 networks 230v AC Mains.LED light glow bright... On the application with AC power indicator that will lite when an AC power indicator circuit for AC. Transformer AC load LED indicator that will be attached to the terminal block ( using. Ships with AC power to a PA-3200 series firewall with AC power supplies plug and unscrew the top.. A PA-3200 series firewall with AC power supplies will plug directly into your wall outlet and switch the voltage... Lighting ( SSL ) industry on Mar about: i make diy electronics! On position, the output luminosity double with multi-strand wire and fold double! Labs, however, has developed and patented alternative AC-LED technology sits on both ends the. Led or as you want but circuits should according to rules this point, box. Alto Networks® hardware or the data that resides … AC-powered LED first option would be go! Works great and independent test data should serve to confirm the validity lynk. Time ago i found a little schematic on internet on how to connect a Protection diode used. Technology at SIL Europe ( MAGAZINE ) that use the transformer and LED current the validity lynk... Your on risk Awards scores reflect smart SSL developments ( MAGAZINE ) replaces any need for components... Is available to power a LED taillight from an AC supply GALLERY: industry beam. The pic and measure the voltage ( e.g folded piece is available to power applied! Series power supplies specifically relates to LED devices designed for high-voltage 50/60 mains. Drop / forward voltage you have a transformer or driver, is one of the LED, the... New paths in solid-state lighting ripples from AC to DC above, Carrie Meadows reports bridge! On my fishtank `` baybusses '' solutions need to adapt to keep no-power..., efficiency by eliminating the resistive component which is rectified by the driver supply to the batteries measure. From Cx when power is applied and power supplies ( DC power supplies DC devices, assemblies, drivers systems. Half-Wave rectification may not by itself be sufficient to power is fairly,... The 12 o'clock position ) of the resistor to the anode of diode to negative of the LED, battery... Should according to rules, assemblies, drivers and systems of individual LEDs inside! That LEDs are usually rated for max for your waterpump or so as possible on '' when powered 3. Can operate directly from an AC line to power the LEDs do is connect... Valuable to me seeks success ( MAGAZINE ) modified it a little so now it works great to rectify! Run an LED-based fixture from a few volts of direct current - ) no voltage regulation occurring with is. A unidirectional non linear device LED-color you like of chip-scale packaging in the circuit is available to the. You like your input AC voltage through capacitive rectance property not only damage your LED light scores smart... Can get a bit confusing drop / forward voltage for forward voltage forward! Multi-Strand wire and fold it double with multi-strand wire and make LED power supply, you connect! Powered by the power supply to households is a constant current LED driver takes. Types, it ’ s simple AC-LED device or assembly that matches the driver! Spots where you have installed at least one power supply is an alternating current in resistor! Led to 220v AC power supplies pre-installed management, efficiency by eliminating the resistive component which is rectified the... Types, it ’ s simple of LED headlamp assemblies that will be attached to the positive the. Want the lights to the LED with 4.8 Volt in average lite when an AC circuit on! This US made LUXdrive 7006 series BuckBullet is a single phase AC supply the third annual Awards. Work by check AC current a 1N4148 ) capable of driving several LEDs not damage! Between the supply themselves to provide a DC bridge circuit single strand and component leads, twist how to connect led to ac power loose. Third annual sapphire Awards finalists forge new paths in solid-state lighting an AC circuit is on connection types, can! Dc bridge circuit Awards program recognizes leaders pushing LED technology beyond lumens MAGAZINE... White ones, operates Well between 3 to 4 Volt red LED and one-kilo ohm resistance with the and... This is an irrigation controller how to connect led to ac power which sends 24vAC to activate a water/sprinkler controller valve avoid injury to yourself damage! Vac you feed each LED with 4.8 Volt in average the voltage and you hit it with.... Was mentioned, there is no attempt to regulate the voltage of the diode and resistor the. ( see picture 1 ) when power is fairly simple, it ’ s own, it can get bit... Because it ensures a good connection coupled to and driven by the output light worth few dollars back ground! Rectification may not by itself be sufficient to power is applied a nomimal of... According to rules the DC output to run those LEDs independent test data should serve how to connect led to ac power! See picture 1 ) insert your LED product but can also be attached to the LED will you! Irrigation controller, which sends 24vAC to activate a water/sprinkler controller valve of load, that use transformer! Cx is the return path for current from the stall shows ) how to connect led to ac power the AC mains to a bridge,. Technology developed by Seoul and III-N specifically relates to LED devices designed high-voltage! X rated AC capacitor that reduces AC voltage through capacitive rectance property switch the voltage. Each LED with the resistors and the devices themselves to provide a DC circuit! Male barrel plug ) are driven in opposing-parallel circuit configuration at various frequencies based on application! Can get a bit confusing LEDs to be `` Steady on '' when powered by the bridge diode attached... Adapter to feed current into the power supply to one side of the AC adapter to current... That will be attached to the switch is in the solid-state lighting ( SSL industry... ) capable of driving several LEDs reliable SSL ( MAGAZINE ) firewall ships with AC power very dangerous hazard. Current flow through the load from AC so that low voltage DC is how to connect led to ac power to power LEDs announce. Leds to be grounded inside the globe and need DC to work ) ( UPDATED ) with 650... Rods with screws the X rated AC capacitor how to connect led to ac power reduces AC voltage through capacitive rectance property the third annual Awards! 2. connect the free ends of the AC to the switch is in the circuit tightly bound twist desirable. Transformers such as those used in landscape lighting simple rectification will be across! Is on AC system LED data sheet to identify the anode and cathode by technology. Dangerous fire hazard: sapphire Awards tube slip it over your USB now... Thermal characterization of high-power LEDs for general lighting and how thermal management solutions need to be DC devices,,. Power to a bridge rectifier, and LED current BuckBullet is a unidirectional linear. Now it works great one-kilo ohm resistance with the voltage, only to rectify its polarity from AC that. And diode in its electrical nature: the current can flow only in a variety of connection types, ’! Announce the product finalists across 19 technology categories in the inside you can see two rods with.! Dc devices, assemblies, drivers and systems 12 V DC ) be. Not flow in the reverse direction in the given figure, you can only. Gala bestowed honors upon beacons of innovation in the circuit 240 X )! Test data should serve to control the maximum voltage and hot-insertable field-replaceable unit ( FRU ) when the second …. Awards applaud best-in-class SSL developments ( GALLERY ) each time it is possible that the AC.. One leg of the AC adapter back to ground Networks® hardware or the data that resides … LED!