My blue LED trackball has faded to a light blue tint. Not to worry, simply disassembled the trackball and applied another coating of Sharpie.

On close inspection the LED looks like it might not be an LED but is rather some type of other bulb, that possibly generates heat.

I say this because the light does not look like traditional LED bulbs and for the size of the part that actually glows [about the size of a small pinhead] it does not seem that an LED could glow that brightly.

Moreover, the Sharpie ink looked like it had fried due to a heat source, which could only have been the bulb. And to my knowledge, LED bulbs normally don't get that hot, certainly not enough to fry the Sharpie ink.

I could otherwise be off on everything because if you look at the Sharpie on the LED it looks like part of it broke off? Coincidentally in the area where the LED glows? So that is why the ball became a light blue tint?

Anyone know if those trackball lights are actually LEDs or something else?