Tuesday, May 22, 2012

11 Ways to Save Energy and Money by Switching to LED Lighting

December 17, 2009 by  
Filed under uv flashlight

Light-emitting diodes (LEDs) are becoming far more common for indoor lighting solutions due to their human and environmental safety, cost, and longevity. An LED is a solid-state semiconductor diode that emits light when an electrical current is applied in the forward direction of the device, as in the simple LED circuit. The effect is a [...]

Powered by Yahoo! Answers