But how do they work?
I read somewhere that the flickering was obtained by a sound generating chip hidden inside. I tried and tried to find the original article back, but I did not succeed. So I went shopping and made this instructable. This is not my invention and all credits should go to the person who first couldn't control his curiousity, just like me...
Important: I am not responsable if your experiments go wrong and you ruin your equipment, your Christmas or both. So be careful...
Step 1: Gather materials
1) battery operated led tea light (less than 1 euro)
2) either one of following items:
- (computer) speaker
- mp3 player headphones
- audio cable
3) optional: little pieces of metal wire or a soldering iron in order to make the connections