I scrounged these up a while back and just now decided to test them out as a part of another project I’m starting. They’re CCFL bulbs, cold cathode fluorescent lamps.

Each driver powers two lamps; I have 8 connected. Naturally, they’re 7 blue and 1 red instead of 8 of the same color. Each runs on 12V DC with molex connectors and are usually run off a computer power supply. (I’m interested to know the current ratings on them, which may spur another project…a multifunctional plugin-in ammeter.) These will eventually be triggered lighting inside a backlit cabinet, powered on only when it’s open.