I'm interested in making LED tails. i have read numerous article on how to do the math for the voltage, etc. I pretty much have it down. However, I would like to know what do i use or how do i wire it so that I can make the LEDs brighten up when i hit the brakes. My plan is to have 5 rows or 10mm LEDS. I want them all to to stay on constantly with the parking lights and when i hit the brakes they get brighter. What do i need to do for this to happen? Any help is greatly appreciated. Thanx

 

PWM is what you need. Read up on um on:

www.hidplanet.com forums - LED forum

 

That to this basically

 

thanx. What is PWM??

 

pulse width modulation