Rearranging the first formula to solve for resistance we get the following: R = V/I. If we solve for Resistance then we get something like this: R = (15v - 2v) / .020A. The voltage value needs to be what is left over AFTER the LED's needs. In this case, our maximum voltage is 15v because it is from a vehicle.
Here we have given tips on Installing load resistor for led headlights. 1. Make sure the load resistor is properly rated for the LED. 2. If the load resistor gets hot, you can install it on a heat sink. 3. Make sure the wires are properly insulated to avoid any electrical shocks. 4.
The resistor would get 0.6 volts at 12 mA. So at 12 mA since the graph for brightness looks linear with respect to current, they'll be at 60% brightness.Part of a larger circuit? Series? Parallel? Playing with LEDs is supposed to be fun, and figuring out the answers to these questions is actually part of the fun. There's a simple formula that you use for figuring it out, Ohm's Law. That formula is V = I × R, where V is the voltage, I is the current, and R is the resistance.Step 2: Install the load resistors in your vehicle. Once you have purchased the proper VRES load resistors installing them is simple. The resistors need to be installed to the wiring of the bulb at the light socket. Plug the adapter harness you purchased with the VRES resistor into the 9005/9006 plug. If installing in V3 Tirton system this 10. You should use 3 different resistors, one for each color, although the blue and green have the same specs. At 150mA the forward voltage for the red is 2.2v, green is 3.5v and blue is 3.5v. So you should use a 22ohm 1watt resistor for the red, and 10ohm .5watt resistor for the green and blue. jqKFD2S. 350 142 473 342 195 133 342 383 26