I have an LED array, 4 x 4 LEDs, 3.2v, 150mA, 20v power supply. In the current configuration using 56Ohm 1w resistors the power dissipated by each resistor is about 950mw. This is really close to the resistors rating.
If I add 3 - 100Ohm resistors in parallel branching out to each group of 4 LEDs and change out the 56Ohm for say 27Ohm. This puts me a little over 56 for each group. Will this affect my light output much? Will adding the 3 in parallel reduce the power dissipated by each resistor?
If I add 3 - 100Ohm resistors in parallel branching out to each group of 4 LEDs and change out the 56Ohm for say 27Ohm. This puts me a little over 56 for each group. Will this affect my light output much? Will adding the 3 in parallel reduce the power dissipated by each resistor?