Bulb Metal
Projector Lamps generally fall under two categories, the halogen bulbs and metal halide. The type decides the type of projector lamp projector that consumers should buy.
Halogen Lamps
A bulb Halogen has a tungsten filament, a noble gas, and some halogen in a case of transparent quartz. It emits a bright yellow light, which provides free reading cause little stress on the eyes. These are 10 - 20% more energy efficient and less expensive. Halogen lamps are used in low to medium price projectors. His Life is usually between forty and seventy hours. A halogen bulb always maintains a uniform brightness throughout its life.
Metal Halide Lamps
Metal halide lamps are best known for his long life, versatility, high performance, excellent color reproduction, and size compact. They emit a very white light, which can sometimes appear blue. These lamps are used in projectors through great price. The most striking feature of a href = "http://thebulbblog.com/metal-halide-bulb"> metal halide bulb is that lasts about 1000 to 2000 hours.
Comparison
A halogen bulb has a lifetime minor compared to metal halide lamp. The halogen bulb shows a constant brightness throughout his life, but the brightness of metal halide lamps decreases over time. (It halved after 1000 hours.)
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Article Source: ArticlesBase.com - The difference between halogen and metal halide bulbs
Bulb Metal
Bulb Metal
