Bulb with a built-in motion detector
The Motionbulb – bulb with a built-in motion detector, can be a good solution for bathroom, toilets or storage space. It turns on automatically when you enter the room and turns off automatically when you leave. The motion sensor can detect you from up to seven and a half meters and it should work for you about 5 years. So, it’s good point to spend just $20 for such perfect bulb.
[via Engadget]