Need wiring advice for JDM Tyght VIP LED interior lights

[harrypotter]

Japanese translation needed! I had my x gf translate most things for me. But some things elude her cause she don't understand car lingo.

Need help with these instructions
http://www.fuji-denki.co.jp/pdf/B-CLAIR.pdf


Bought this awesome rice VIP interior light thing. There are four wires, I know what all of them but the yellow one go to. Question is what are the resistors for, and are they required?


The one I have:
Bullcon -B-CLAIR- ƒ}ƒ‹ƒ`ƒtƒŒƒLƒVƒuƒ‹ LED ƒr[ƒNƒŒ[ƒ‹ (http://www.fuji-denki.co.jp/car_accessory2/b-clail/index.htm)

http://ec2.images-amazon.com/images/I/51Uo0GKbJiL._SL500_AA300_.jpg

The main set of instructions is just the four pages, but also included is this other random page by itself that has the resistors pictured. BTW the items in the picture are multi meter, light control unit, resistor, and door open sensor. And here are what I have so far from my translater:

yellow
small?
(usually yellow goes to light switch, but I don't know why a door open controlled light would want to go to light switch)

red
single power supply, ACC, IGN

black
ground, earth

blue
door switch

[harrypotter]

Any one?

Bump

[jacobs13]

the resistors are for the leds because they will pop with too much current. You need to use them. I think superbrightleds.com or whatever has a chart

[harrypotter]

the resistors are for the leds because they will pop with too much current. You need to use them. I think superbrightleds.com or whatever has a chart

Thanks for the advice. I know led's use less power, but on such an expensive unit you would think the resistors are already wired in to the control box. Thing cost me $150.

[cotbu]

Yellow wire might be manual override, like the dome light has(but using the light switch) I know my jeep has that feature. You might be able to wire it to a separate switch for manual off when your working with the door open

[harrypotter]

asking one last time, then I hook it up and burn it down!!!!!!!!!!!

[nightsauce]

LEDs have to stay within a certain voltage. Based on the LED's characteristic, there is a certain voltage the LED has the remain within.

http://www.kpsec.freeuk.com/images/diocha.gif

Above is the diagram for your basic diode - not specifically a light emitting diode (LED). There is a certain voltage that is needed to allow current to pass through the diode, in this case it is slightly below 0.7V. It doesnt take much more voltage to allow a lot more current. More current = blown bulbs. Resistors are basically in there to lessen the voltage. There are calculations, but I'm not going into that.