Lighting Bulbs

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description

About lighting and different bulbs.

Transcript of Lighting Bulbs

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Mercury Vapor Lamp & Metal Halide

Halogen LampsAhalogen lamp, is anincandescent lampthat has a small amount of ahalogensuch asiodineorbromineadded. The combination of the halogen gas and thetungstenfilament produces ahalogen cyclechemical reaction which re deposits evaporated tungsten back onto the filament, increasing its life and maintaining the clarity of the envelope.

StatisticsHalogen

*Lumens per watt:10 - 35*Lamp life:1700 - 2500 hrs*CRI100 (best possible)*Color Temperature:2800 - 3400 K*Warm up time: instant

Mercury Vapor

*CRI 20 (clear bulb) 60 (phosphor coated)*Color Temperature - 6800 K (clear bulb)*Lumens per watt: 30-60*Lamp life: 24,000 - 175,000 hours*Available in 40-1000 W

Metal Halide

*Lumens per watt:65(large bulbs)up to 115(small HP MH bulbs)(25% of energy makes light, 75% heat)*Lamp life:20,000 hrs( mounted base up)10,000 hrs(horizontal mounted)*CRI60 - 90*Color Temperature:3000(warm white)- 20,000K(blue)Warm up time: 1 - 15 minutes

Mercury Vapor Applications

Common uses: large areas like parks, street lighting, high ceiling buildings, gyms. Low pressure lamps with a quartz envelope are used for germicidal purposes since they allow UV light to pass.Metal Halide applications

Common uses:outdoor lighting where good color rendering is needed, television/film lighting, sports fields, car headlights, flood lights, heavy flashlights, green house applications

Halogen Application8 mm projectors (first use 1960)Portable work lightsFilm/Television Production LightingHome Interior Lighting (Smaller Wattage)Home and Commercial Exterior Lighting (Larger Wattage)Auto headlights