High pressure discharge lamps or to be precise metal halide lamps combine an enormous amount of light with excellent colour rendering and use an arc instead of a filament. If you compare this type of lamp to a conventional incandescent lamp (GLS) where light is generated through resistance heating of a filament and most of the electrical energy is converted to heat instead of light, the metal halide lamp generates light by passing an electrical current from one electrode to another through a metal vapour to form an arc between the electrodes.
Metal Halide lamps give out more lumens per watt and also give long life. As they have no filament to burn out and will last an average of 6000 hours or two years which is six time the life of an incandescent lamp. This is increased to 9000 hours or three years if used with electronic control gear.
A change in the lamp and ballast construction allows pulse start metal halide lamps to start using a high voltage ignitor in the ballast instead of a starting electrobe (probe) in the lamp. The result is a white light system that challenges high pressure sodiums long lamp life, high lumen output and quick start capabilities. This can produce metal halide lamps with 20,000 hours of life or longer.
Megaman have now produced a substitute for metal halide and mercury tungsten blended lamps.
The MEGAMAN® CLUSTERLITE produces formidable illumination with exceptional high lumen maintenance, making it the perfect substitute for metal halide and mercury tungsten blended lamps. With various wattages for you to choose from, the CLUSTERLITE series caters for various commercial and industrial applications with a menu of advantages
For a comprehensive range of metal halide lamps in a variety of styles,
visit www.bltdirect.com where you can order on line and benefit from special offers.
Created by Rebecca Appleton on 23rd April, 2008
Qualified online journalist, specialising in the home improvements and energy saving sectors , You can follow them here