Unplug the fixture or turn off the power at the main panel. Remove the diffuser (cover), then carefully remove the ...

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 ...

To comply with new laws on reducing energy usage, fluorescent and HID lighting systems — both examples of arc discharge lamps — have become more complex and varied in their performance. To understand ...

Q • I have a fluorescent light in my laundry room that won't always come on. Sometimes it does, but more often than not, it only has a dim light and the bulbs flicker. I've tried replacing the bulbs, ...