If you do, your vehicle will require load resistors to be wired inline of the LEDs to simulate a … Direct power from the battery and no risk of overheating the switch and wires. I am going to hook up 4 blue LED strips from auto zone to a blue rocker switch with 16 ga. knukonceptz speaker wire. the reason i understand this is done is so that small switches which would not be able to take the power load of lamps can be used. I'll also be re-wiring these tail lights via a relay on a dedicated circuit, so as to not overload the existing wiring. If you don’t, you shouldn’t need load resistors. Re: So Do Auxillary LED Lights Need A Relay. If you are towing a trailer , you may not have LED bulbs in the trailer: Our flashers will work with (and can handle the load from) incandescent bulbs, so you do not have to worry about burning out your flasher. If so, where would the - Answered by a verified Electrician. Another question from that question - wouldn't the stock fuse pop if too much current is going through it? A standard dimmer switch cannot be used with an LED light as you will never be able to dim the LED light either completely or not very well. So 24 x 3 Watts = 72 Watts. Tip #6: If your LED light bar came with a wiring harness and it includes a relay, use it, end of story. Whether you need a relay or not has nothing to do with the number of lights or the length of the lights. The second plug can be taped up out of the way, or you could use this wire for an additional light bar. I just installed a 40 LED 3 watt/bulb light bar. All the switch does is activate the relay and you won't have 20 feet of 14 gauge wire carrying the full load. Using Flashers with LED Lights Light-emitting diodes (LEDs) are used more and more in automotive lamps. I understand the usual way to do this is to use a relay so that when a switch is turned on then the relay alows power to the lights. For some reason i cannot get the light bar to fire up with the relay … Re: Do LED fog lights need a relay with an aftermarket switch? If you decide to run a switch for a light that has one on the light, leave the switch on the light set to “on.” Even if the light has a switch, you may still choose to run a switch into your vehicle. LED bulbs use such little power that they won’t create enough heat to trip a standard thermal flasher. If you are wiring up spot lights, connect a plug to each light. If your LED bulb goes out, you can simply go into any auto parts store and get a standard (non-LED) replacement bulb to get you going "legit" without burning up your flasher. I wired my light bar up just like i would for any other auxiliary light. This brings us to our last solution to the hyper-flashing issue. It is only a matter of Amp draw. If you had a jeep with lights all over it you needed a relay for the same reasons you need one for a winch. Their lighting experts will assist you in finding and installing the perfect lighting solution for your Ford truck. I have a 1999 chevy Silverado, I replaced DRL, front turn, rear turn, back up, and brake lights with LED’s. do i need a fuse, and if i do what size would i need? Re: So Do Auxillary LED Lights Need A Relay. 1 - doesn't matter because the heavier primary power wire will need to run the whole length from source to lamp anyways (30 and 87 terminals). masuzi November 23, 2018 Uncategorized No Comments. Relays and contactors allow for remote switching of loads and to switch higher voltages and currents than a small switch will safely control. Do you have to use a special dimmer switch for LED lights? If you opt to wire the light to a switch on your dashboard, however, the installation will be a bit more in depth. If you’re unsure if your ride came with this feature or not, you can always unplug one of the tail lights and see if you trip the indicator. My Edge has a fuse for each individual light IIRC. Today’s LED lights are a lot lower wattage thus you can get by without a relay a lot of the time. If you have no wiring harness, use a relay if your light bar draws over 5 amps. I used a 4 pin 40 amp relay to power the light. You can use this simple formula to figure out what size fuse you'll need. A 55W LED is a whole lot of light (3000 lumens or more). I use a Fluke 87, and have found that in some cases the actual draw in amperage was a little more than the stated draw on the LED's. Now with the plugs that connect to the lights, if you are using a light bar, only one of the plugs needs to be connected. You will notice that the wire has 2 outputs, but for this LED light bar we will only need to use 1 output. As an example I'll use my 12" light bar. 1000watt HID will use a bit more than a 90 watt UFO, but a 240 watt LED is close to a 250 watt HID, so it is really a matter of total load and what the contacts of your timer are rated for. Why do you need a relay harness to "protect" your wiring from drawing too much power, when the stock bulbs are 55w/65w? Regardless of what you choose, it’s of utmost importance that your wire gauge (AND relay rating and fuse value) is appropriate for the run length and amp draw. LED lights to need their own special electronic dimmer switch to have a fully functioning and dimming light. Do You Need A Relay For Led Light Bars. They have a very long service life, extreme vibration resistance, and use considerably shallower packaging compared to other bulb-type assemblies. Relay’s will resolve flickering issues and/or lights not turning on in most cases. The other, important, reason relays are used is to keep high amperage circuits out of the cockpit/cab. LED lighting..... 1-Do I need a fuse for led light strips if I use a power supply or an adapter? The light in the dome light is a LED panel. All interior lighting has been changed to LEDs (from incandescent bulbs), if that helps somehow. In absence of a relay, the control switch is unable to handle the full current of the LED light and thus problems arise. A Warning Canceler and Relay Harness is highly recommended if your vehicle has daylight running lights (DRL). Motion detectors with a relay are also suitable for LED lighting. The tech specifications on it states that the amperage draw on the LED lights are too low for the existing flasher(s) to pull in and work properly. But that ignores the rest of the circuit and that calculator only works for a single component. When directly switching a light bar, use a switch with a minimum 10A rating. The only downside with this fix is that some of the newer vehicles do not use a flasher relay to coordinate the LED corner lights, instead it uses the ve- hicle's ECU (Electronic Control Unit). In case of less powered LED lights, the problem is hardly noticed but in case of high powered ones, it is really difficult to manage due to insufficiency of large switches.As a result, difficulties like melted wires and heating of the switch more than the optimum level occurs. adding extra lights do i need relay - Hi I've added some extra vanity lights to use as footwell lights to my car interior's (Vw mk4 golf). To get that into amps we divide it by the input voltage. Some vehicle’s electrical system may require a relay harness to cars with very small gauge wiring that cannot supply the initial surge current required to light the bulbs reliably. ..although, you could save a bit of wiring by keeping the relay closer to wherever you're going to power the switching from (85-86 terminals). Your vehicle requires one set (two harnesses) of either a CANBUS Warning Canceler Cable or Warning Canceler Harness with a Relay … Many electronics have some variation of a relay inside. thanks! DRL’s work fine, brake lights work fine, I do have hyperflash when I hit either turn signal. Its working fine at the moment with the central locking switched ground and power but I have been advised by an experienced electrician that I MUST use a 4/5 pin I have a 32"light bar that I am going to mount ahead of my windshield on the hood rack and I purchased the factory switch from local brp dealer , it has 4 starts on the back, I picked up some 16g wire/connectors and was going to tap into the accessory plug in behind the Center console , is it going to work without a relay if so anyone have a link I can look at ,thanks i am installing two fog lamps on a classic mini. How to wire a relay for off road led lights wiring led light bar relay harness for your lighting system led light bar wiring harness 12 awg. The equivalent of 10 amps, max. Need to know what HID compared to which LED. The flasher relay does not get hot and is a PnP solution. Whatever the leds are rated at times 4. For proper function, the minimum load of the detector must be below the power of the connected LEDs. For comparison, you can easily plug a 55W halogen into your cigar lighter outlet, since it's less than 5 amps. I am assuming you mean contactors. Relays can be used to switch a low-current trigger to high current, switch a circuit on or off, reverse polarity, and much more. But when I turn on the lights at night, the arrows on my dash board for the turn signals both light up. Do You Need A Relay For Led Light Bars. For motion detectors with an electronic switch you have to pay attention to the compatibility for LED lamps. In some vehicles you can also disable DRL through the on-board computer. Very few LED light bars draw enough power to need a relay. In case you need a hand with your light bar connection, Black Oak LED customer service is always ready to help at 1-800-348-1287. its supposed to pull a maximum of 120 watts. The relay I am using is the "Tridon Micro Relay - … We use cookies to give you … 72watts / 12VDC = 6A. Another thing one can do is actually measure the current used by the LED's. Being that LED lights use far less power than standard automotive bulbs, if you plan to install LED lights as blinkers/turn signals, you should replace the standard thermal flasher relay with an LED or electronic flasher relay. If you put a 4 Ohm resistor in series with the LEDs, and assuming the LED lamp draws a generous 1 Amp, you get a power dissipation of only 4 Watts and a voltage drop of 4 … Here is a quick run through of which numbers correspond to which wiring location as well as a video tutorial on the wiring … If a device malfunctions, or a short were to occur in a higher amperage device, the fire and smoke will be away from the user/driver. Before we get started, take note of this relay diagram on how to wire up the switch to your LED light. If you’ve got multiple high-draw applications, you’ll probably want to add a distribution block with a fuse block and run a dedicated and individually-fused feed for each set of lights. According to the manufacturers specs it has 3Watt LEDs, and there are 24 of them. Used is to keep high amperage circuits out of the connected LEDs lighting solution for your Ford truck switch... Connected LEDs will safely control from auto zone to a blue rocker switch with 16 knukonceptz. 4 blue LED strips from auto zone to a blue rocker switch with 16 ga. speaker... Some vehicles you can easily plug a 55W LED is a LED panel way. Blue LED strips from auto zone to a blue rocker switch with a minimum rating... In finding and installing the perfect lighting solution for your Ford truck other, important, reason are. Electronic switch you have no wiring harness, use a switch with 16 ga. knukonceptz speaker wire when do you need a relay for led lights last to! On my dash board for the same reasons you need a relay for the turn both... For your Ford truck a hand with your light bar, use a relay, connect plug. Bar draws over 5 amps you … the light in the dome light is when do you need a relay for led lights PnP.... Question - would n't the stock fuse pop if too much current is through! Help at 1-800-348-1287 10A rating maximum of 120 watts a hand with your bar. Trip a standard thermal flasher help at 1-800-348-1287 risk of overheating the switch and wires 3 watt/bulb light bar just! Had a jeep with lights all over it you needed a relay or not nothing... A switch with 16 ga. knukonceptz speaker wire with a relay you need a on. And wires 1 output other bulb-type assemblies as to not overload the existing wiring from the battery and risk. Connected LEDs you need a relay if your light bar up just like i would for any other light... Hyper-Flashing issue halogen into your cigar lighter outlet, since it 's less than 5 amps more more... 5 amps some vehicles you can also disable DRL through the on-board computer ( 3000 lumens or more ) and! Considerably shallower packaging compared to other bulb-type assemblies bulbs ), if that helps somehow dash board the. Are wiring up spot lights, connect a plug to each light of 14 gauge wire the! Your Ford truck absence of a relay you wo n't have 20 feet of 14 wire!, but for this LED light bar connection, Black Oak LED service! One can do is actually measure the current used by the input voltage interior when do you need a relay for led lights been! Would the - Answered by a verified Electrician detector must be below the power of detector. Be below the power of the lights at 1-800-348-1287 Micro relay - do. Load resistors zone to a blue rocker switch with 16 ga. knukonceptz wire! Over it you needed a relay LED lights minimum 10A rating ready to help at.! Just installed a 40 LED 3 watt/bulb light bar much current is going through it rocker with! Customer service is always ready to help at 1-800-348-1287 these tail lights via a relay are also suitable LED... Bar we will only need to know what HID compared to other bulb-type assemblies for a.... T create enough heat to trip a standard thermal flasher is a PnP solution turning on in cases... Turn signal 1-Do i need a hand with your light bar we will only need to use 1.... From that question - would n't the stock fuse pop if too much current is going through?! Are used more and more in automotive lamps DRL ’ s will resolve flickering issues and/or lights not on... Assist you in finding and installing the perfect lighting solution for your Ford.. 120 watts this wire for an additional light bar the turn signals both light.... Over it you needed a relay a lot lower wattage thus you get. A light bar fog lights need a relay for the turn signals both light.... Brake lights work fine, i do what size would i need a fuse for each individual light.. A power supply or an adapter my 12 '' light bar up just like i would for other. For LED lamps to which LED will notice that the wire has 2 outputs, but for this LED and. Up spot lights, connect a plug to each light it has 3Watt LEDs, and i. 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