Glowing Water Lamp.

Designed by Scott Franklin, this underwater lamp is strange, mesmerizing, with a hint of danger:

The WET Lamp is an elegant and playful series of glass lamps with an alluring water-submerged light bulb at its center. Putting an exposed light bulb in water certainly raises some eyebrows, but it also creates an intriguingly simple dimmer switch. When a thin silver rod is slid into the water, the WET Lamp turns on and becomes progressively brighter as the rod is submerged.

Despite its precarious concept, the Wet lamp is a completely safe and isolated system of low voltage power.

The%20WET%20Lamp%20is%20an%20elegant%20and%20playful%20series%20of%20glass%20lamps%20with%20an%20alluring%20water-submerged%20light%20bulb%20at%20its%20center.%20%20Putting%20an%20exposed%20light%20bulb%20in%20water%20certainly%20raises%20some%20eyebrows,%20but%20it%20also%20creates%20an%20intriguingly%20simple%20dimmer%20switch.%20%20When%20a%20thin%20silver%20rod%20is%20slid%20into%20the%20water,%20the%20WET%20Lamp%20turns%20on%20and%20becomes%20progressively%20brighter%20as%20the%20rod%20is%20submerged. - via Didn't You Hear