My fave LED just DIED!! Please help!!
My latest work involves one of those LED's that change color as they glow. I'm using a battery pack i ripped off of something because it has a switch pre installed. It holds 4 AA batteries. I've tried it with the LED in question before, and it worked just fine. I was testing it again after some assembly and BAM, twas dysfunctional. It glows very feebly. So I switched with my one back up LED. That one won't even light. What did I do wrong? Did I over power it? Where can I go to purchase a new LED of the color-changing type? How do I not kill this one?