It has the convenience of a nightlight, but requires a tiny fraction of the power. This neat bedside tray, called the Firefly, uses super-energy efficient "electroceramescent" technology, which combines a durable ceramic with phosphorescent particles to produce a soft blue glow. Even if left on 24/7, the particles will give off light for at least a decade (the company's been running one for 12 years now). No more fumbling in the dark for your glasses.

Story by RJ Gambale. This article originally appeared in Plenty in September 2006. This story was added to MNN.com in July 2009.

Copyright Environ Press 2006.