- Joined
- Jan 14, 2011
- Messages
- 3,816
- Points
- 63
So I was piddling around with my homemade labby PSU and a yellow LED I got from an old computer....
There were a couple of weird things... firstly:
When I turned up the current (started at like 40mA), it changed colors. At first it was yellow, then it gradually turned orange and then orange red at higher currents.
Secondly - why did it survive so much current? I know LEDs are more hardy, but still - aren't most LEDs designed for only 20-30mA? I fed it over 200mA and it is still functioning.
There were a couple of weird things... firstly:
When I turned up the current (started at like 40mA), it changed colors. At first it was yellow, then it gradually turned orange and then orange red at higher currents.
Secondly - why did it survive so much current? I know LEDs are more hardy, but still - aren't most LEDs designed for only 20-30mA? I fed it over 200mA and it is still functioning.