Quote:
Originally Posted by BrianG
Yeah, but that's around 7mA each. and light uniformity probably isn't a big concern. I was playing around with similar white high brightness LEDs a while back (making a 80 LED bench light) and a common resistor can get largish if enough LEDs are used in parallel at 20mA each. In this case, only 4 are used, but that still requires around 0.5w resistor. Also, when used as headlights, the brightness should be uniform for best appearance, and a common resistor didn't give good results in my playing around. I ended up making 4 strings of 20 LEDs in series and using a simple CC circuit for each chain.
By the way, I'm not trying to sound argumentative, it just might sound that way.  |
No, I wasn't suggesting a common resistor. I was agreeing with you.
