The functioning theory behind HID lamps is very comparable to that of fluorescent lamps. Electrodes are positioned at either end of a tube, whose chamber is filled with gas and metals such as mercury. An electrical charge passes from one electrode to the other. In fluorescent lamps, this charge creates ultraviolet (UV) light, which converts to visible light once it passes through the phosphors on the tube’s interior.
In an HID lamp, the electrical arc, gasses, and metals are contained in what is known as the arc tube. The Mercury tube is made from either quartz (used in mercury vapor and metal halide lamps) or transparent ceramic (used in high-pressure sodium lamps because of their high temperature). All arc tubes are housed within a larger outer glass envelope.
The main dissimilarity in HID lamps is the actuality that they require a start-up time to attain their full brightness. This usually takes five to ten minutes during which time the lamp will flicker until the metal inside fully vaporizes and the lamp reaches its full operating temperature.
Initial Lumens: 7, 800, Average Rated Life (Hours), 10, 000+.
- 10,000 Average rated hours
- 100-Watt medium base
- Coated 3900K lamp
- UL certified
- Initial Lumens- 7, 800
- ANSI Designation: H39