LEDs..how to go from 12v to 6v, I got 2 6volt leds and I need to tap them onto 12v power Options

[Black0nBlack94]

Any body have any idea how or what I should use to make a 6volt LED light on a 12volt power supply? I know that if I tap it on directly to the 12volt it will burn but I cant figure out how to make it light without burning. I want to install 2 blue LEDs, one on each door behind the lock and I plan to take power from the courtesy light. But After the current leaves the courtesy light and before it reaches the LED...I need to lower the current. I think I need a resisitor but I dont know specificly which one. If anyone has done this before let me know what I need to do. Thanks 6gcers

[Black0nBlack94]

Hmmm, Im not exactly sure...you see I got them out of a toy wand my tenants daughter broke...I decieded to mess with it one day and I found out its bright as s%*T. So I decieded to put them behind the door lock. I can light them on a varad LED circiut board that makes an LED flash like an alarm when you take the key out the ignition, visual theft deterence {keep dumbasses from breaking into your car if you cant afford an alarm system}...I've beed searching to find out the voltage output on the cicuit board but so far no luck. there is a good possibility that its 3.6volts though. I figured if I cant do that then I would buy bright 12volt LEDs from somewhere...But in that case how many mcd is bright enough? Could someone compare it to something I can see?...the guys in radio shack refuse to show me them before I buy. They have all different ones. 200mcd 250mcd 1000mcd 2000mcd 5000mcd.Thanks lemme know if anyone find out anything I dont know yet