What is the difference between a black light and a black light blue light bulb?
Black light blue light bulbs have a special deep-blue glass that filters out visible light, producing the mount amount of ultraviolet light possible. Black light blue bulbs are preferred to produce the minimum amount of visible light, especially for sensitive areas. Why does a halogen light last longer than a regular incandescent light bulb? Halogen bulbs can last up to two or three times longer than regular bulbs because they are filled with chemically active gases that prevent the filament from evaporating. The gas inside the halogen bulb combines with the tungsten atoms that condense on the glass. A halogen bulb is often 15-20 % more efficient than an ordinary incandescent bulb. Does switching lights on and off use more energy than leaving them running? No, however, turning the bulb on and off repeatedly may shorten the life of the bulb. To help the bulb last as long as possible, it is best to leave the bulb on for a warm up period of 10 to 15 seconds. Can I use a dimmer switch with
