Meg gave me an LED salt lamp with a broken power supply. I cut the wires, spliced an old cell phone charging cable in and powered the lamp using a 5V 1.5amp USB power supply. The whole thing draws about 1 watt of power!
I made a youtube video about it too :)
Salt Lamp LED USB brick fix (Youtube Link)
A superlatively energy efficient decorative lamp! Hacking the wires together was hard because they were thin 22+ gauge wires with fragile insulator jacketing, my essential tremor exacerbated by coffee consumption, the fine delicate wires were eventually twist bonded and wrapped with electrical tape to minimize the possibility of a short.
|The salt lamp with the LED module + holder & PWR cable|
|Electrical Tool + Tape, old USB cable & USB power brick|
|Saved about 1ft on the micro USB side for future projects|
|The functioning setup undergoing initial testing|
|A macro of the LED illuminated salt crystal :)|
|Measuring 1w on the Kill-A-Watt meter|