Whether one of your lights went out and you only have an LED bulb on hand to replace it with, or you've decided to completely replace all of your incandescent and fluorescent lights with LED bulbs, ...

The first artificial source of light was nothing more than a burning stick -- about a million years ago. About 5,000 years ago, a wick and some oil in a clay jar became the first lamp and replaced the ...

In keeping with a pledge to reduce energy consumption campus-wide, Rochester Institute of Technology is in the midst of a project to replace fluorescent tube lighting with energy-efficient LED ...

Abstract: A new type of high-efficiency small angle ultraviolet packaging device is designed in this paper to address the issue that the efficiency of medium pressure mercury lamp ultraviolet ...

Abstract: A light-emitting-diode (LED) lamp driver with its input compatible with high- and low-frequency sources is proposed. It can be powered by the ac mains, low-frequency electromagnetic ballast, ...