Haunt Forum banner
1 - 6 of 6 Posts

·
Registered
Joined
·
77 Posts
If you run them in series, use a 100-ohm resistor -- that is the closest standard value to theoretical value of 80 which would give you 20 mA through the LEDs with a 9v battery. The 100-ohm resistor will give you 16 mA which should be plenty bright.

9v+ ----[100]----[>|----[>|---- 9v-
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top