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. With no resistor, the LED current would shoot up (until you hit a thermal based limit due to the LED materials). If you had a current source, then you would not need a series resistor because the LED would run at the current source level. It is also unlikely that the forward voltage of the LED is always exactly the same as the supply. Simply put, the load resistors draw additional current to create a stronger signal to the flasher relay. The down sides to adding load resistors is that they get hot and they reduce one of the primary benefits of change to LED or SMD bulbs; less current draw. That said, load resistors are a quick and easy way to fix a signal flasher problem. You can do the same tricks with using diodes to drop the voltage to the motor that they do with constant lighting using light bulbs - like most Proto 2000 locos - however the LED is over twice the voltage of the 1.5V light bulbs they use, so you end up with a loco that works like most sound locos on DC - turn the knob over half way before the Simply buy some capacitor packs and install. Check out the thread Hid for dummies for further help. Bixenon kits only follow this below, i.e. hid lowbeam hid highbeam. Supplies needed: 1. HID kit. 2. 2 or 4 6/8ohm 50 watt resistors (depending on single/dual beam HID kits) 3. 2 9007 female connectors. 4. . Lumen® - 7443 / 7444NA LED Bulbs. Lumen® - 7443 / 7444NA PlaZma LED Bulbs. Both of the above models offer a true plug and play installation. NO wiring in resistors, no cutting the lighting harness, absolutely no different fuction that factory bulbs, besides the fact that they are LED. Normal automotive system voltage is about 12.6 volts and when the engine is running about 13.6 volts or slightly higher. Automotive LED design headlights are designed around this. They should work fine anywhere between 12 volts, maybe a little less right up to 14 volts or slightly higher. 1. by sanding their lenses with 600 grit sand paper. 2. by making a soft diffusor sheet out of 1/16th or 1/8th inch clear or tinted acrylic or polycarbonate and then sanding it with 600 grit sand paper. 3. by making a heavy diffusor plate out of 1/16th or 1/8th inch thickness white polyethylene sheet. Part 1 Supplies. It's not a matter of CANBUS or not. LED bulbs have a lower resistance than regular filament bulbs. The JK/U is designed to hyperflash and display a message if a bulb fails and it's resistance changes. In order for an LED bulb to work, the add-on resistor is typically needed to compensate for the LED's lower resistance. PilotPTK (PilotPTK) February 28, 2013, 11:39pm 2. You’re probably going to need to use the Load Resistor. Unfortunately, the downside is that the excess watts will be converted to raw heat. You’ll have to mount the resistors somewhere that won’t be bothered by heat. In your situation, 21w - 7.5w = 13.5w of heat is going to be generated in

do i need resistors for led headlights