Leezygeezer
Member
I want to create a flash ring for my camera using an led array and have a few questions. My first one is going to be super simple so here goes.
Plan is 9v supply, with a simple on off switch, 20 white LEDs in parallel with 450 ohm resistors, using this method i calculate that 1/4 watts of heat dissipation should be ample for a 0.02 ma led
Q1. Does anyone see a problem with this method?
Q2. Is there another method that doesn't require massive heat sink resistors?
Thanks
Plan is 9v supply, with a simple on off switch, 20 white LEDs in parallel with 450 ohm resistors, using this method i calculate that 1/4 watts of heat dissipation should be ample for a 0.02 ma led
Q1. Does anyone see a problem with this method?
Q2. Is there another method that doesn't require massive heat sink resistors?
Thanks