Well I bought 50 BLUE LEDs 5MM(T1 3/4)7000mcd for my window switches and maybe other things around the car. One of the other things I thought about was to put inside my amp rack to light up the amp at night, my friend just got his car done and they put LEDs on his and it looks sweet! My question is, how do I connect them? Im pretty sure its more than just connecting positive and negative and thats it....right? Do I need resistors? When I bought the LEDs, they included resistors for working at 12V, any help would be appreciated, i plan to wire these puppies together like in a line. Thanks in advance!

Devon

 

470 ohm resistor


Here is the result

 

Resister value depends on the working voltage of the LED. Also depends on how you wire them. If they are typical 2.5 - 3.0 volt LED's you could wire them series / parallel in groups of 5.