The only functional reason why you would need resistors is to even out the power flow. But if there is no voltage drop to correct, your LED headlights will work perfectly well without resistors. So yes, your LED headlights can work without resistors but only under specific circumstances.
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I purchased the Mopar LED Headlight kit (part number: 82215136AE) from BAM at a price of $749.25, free shipping UPS ground, and the LED fog lamp kit for another $224 plus $8 shipping USPS. The headlights arrived in a large box containing two individual boxes, each with one head lamp 'suspended' between two plastic sheets to avoid impact damage.
1 resistor, per side, in the rear worked for me. I replaced all my signals (4 rear, 2 front) with 3157 SMD LED bulbs. I would order their LED compatible blinker. This will control your blink rate, and then you not wiring in a load resistor.
How do I know if I need an LED resistor or canceler cable? When installing LED fog or signal lamps, you will encounter problems on some vehicles with computer-managed electronics due to the difference in power used between standard halogen bulbs and LED bulbs.

I had to change my front turns signals at the last minute, because my old ones wouldn't fit my new fender flares. I haven't researched these issues at all, and I'm busy working in the rain trying to get my lift finished. I'm being lazy and just asking what is probably a redundant question. I

It doesn't have to be a resistor, but that is probably the most simple way to do it. LED light bulbs have circuitry integrated into them that overcomes all these problems. Old-fashioned incandescent light bulbs (including halogen bulbs) are different. The part that lights up is made from a thin tungsten wire that glows when it gets hot. This varies depending upon the LED but is usually in the range of 1.5-5V. You need this voltage to drive the LED to turn on, however, as the voltage exceeds this the current goes way up and you can burn out the LED. The resistor in series with the LED keeps the current at a specific level.
He said LED headlights. It's the new rage..I hate HIDS personally. I don' think you need resistors for headlights. OP how do they look as far as compared to Halogen also do you have any pics. I've been wanting to do this for awhile now, but it's a little premature atm.

Doesn't make sense:-. turn signals are something used only intermittently, LED will save the proverbial "ten per cent of bugger-all";. additional resistors with LED turn signals reduce the total resistance so you can use a relay for incandescent bulbs; however, by definition, those resistors consume the power the LED saves; either fit incandescent bulbs or a relay for LED.

A driver is a device that goes between your vehicles wiring and the LED headlight bulb. It gives the LED headlight bulb the type and the amount of electricity it needs to power up. If you didn't have the driver, nothing would happen. The plugin that looks like your original headlight bulb is attached to the other side.

Posted this already .47 watts spread across a resistor that is meant to dissipate 50watts. The LED voltage regulator gets hotter than these do. As well as the heat sink ribbon of the LED. Keep in mind the light fixture itself is a heat sink. The halogen bulbs heats that fixture up significantly hotter than the LEDs.

It does this by dimming the original halogen bulbs in a few different methods: 1: Dimming by resistance. If you have a resistance DRL (like many Subaru vehicles) a lot of times you can unhook the DRL resistor module and completely bypass your DRL system. 2: Dimming by PWM. Installation Steps. Determine your headlight bulb type. Purchase an LED conversion kit from AT. Snap a quick photo of your OE light output prior to installation for comparison after. Unplug the plastic wiring connector from the factory-installed bulbs and remove them. Store them in a safe space for potential future use. The switchback LED bulb needs 50W 6-Ohm load resistor to ensure its proper dual-color alternating function. You must tap this 50W 6-Ohm resistor (not the 25W
40 posts · Joined 2010. #6 · Dec 2, 2010 (Edited) All LEDs require current limiting resistor. You will let the smoke out otherwise. Really! The resistor sets the current based on the voltage drop (voltage applied) across the LED. Old school LEDs are 20mA but newer more efficient LEDs could be in the sub 10mA range.
Kenworth Headlights - Changing to LED. I have a 2008 T800 and want to upgrade the stock headlights. I can see good when its on bright but when I switch to dim I can hardly see at all. So the other day I bought 2 new LED headlights to replace the outside stock lights (high and low beam light). Once they are installed all 4 headlights are on when Expert Reply: I have added a diagram for you which details how to install the Putco LED Light Bulb Load-Resistors # DI34ZR. The LEDs will have one power wire and one ground wire; all you need to do is tap one end of the load resistor into the power wire and the other end will either ground to the trailer or the ground wire from the bulb. If we wish to use a 9V supply to operate the LED we N=MUST "get rid of" 9-3 = 6B somehow. The resistor does this. To drop 6V at 20 mA the resistor needed is R = V/I = 6 / 0.02 = 300 ohms. In this example a 9V battery + a resistor + an LED will operate at 20 mA. The resistor can be placed before or after the LED. Just use the standard resistor values chart to find the nearest highest value available. Example 1: The blue LED has a typical forward voltage drop of 3.2 V, therefore a 5 Ω resistor is required when using a 3.3 V supply voltage. However, if you are using a 5 V supply voltage, then a 90 Ω resistor is needed. As you can see, the resistor s6KZ.