Is my RGB LED broken, or am I just dumb?
It's rated to 9-11v, so I hooked it up to a 9v battery. The LED has 4 leads:
2) Red -
3) Green -
4) Blue -
The green and the blue work as expected, and I can combine them to get cyan.
The problem is with the red:
1) It won't combine with any other color. If the red is switched on, the green and blue switch off.
2) It works on both polarities.... It turns on both with +9v and -9v.
Am I doing something wrong? Am I missing something? Am I going crazy? Am I just stupid!?