The xenon gas is used only to provide some light immediately upon lamp startup as required for safety in an automotive headlamp application.
Ceramic discharge metal halide lamp.
High intensity discharge lamps.
Philips lighting introduces mastercolor cdm elite agro 315 w t12 metal halide lamps for horticulture market.
Ceramic metal halide cmh or cdm lamps are a relatively new source of hid light that is a variation of the traditional metal halide hid lamp.
315w cdl agro lamp is made by philips lighting belongs to the ceramic discharge lamp cmh family also known as cdm and lec.
Full intensity is reached 20 to 30 seconds later once the salts of sodium and scandium are vaporized by the heat of the xenon arc.
These are actually metal halide lamps.
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Technical specification item ceramic metal halide hid bulb overall bulb shape ed bulb shape ed18 overall bulb base type mogul bulb base type mogul screw e39 light technology ceramic metal halide lumens 41 000 lm bulb operating position universal burning wattage equivalency 400w mh watts 400w trade number cmh400 u 830 r rated life 20 000 hr.
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Metal halide mh lamp arc tubesare made of either quartz or ceramic see figure 1.
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Description this expanded recall involves philips lighting energy advantage ceramic metal halide lamps model cdm330 manufactured from may 2011 through march 2014.
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Vivosun 2 pack full spectrum 315w 3000k ceramic metal halide grow light bulb high efficiency low heat cmh cdm grow lamp for flowering 4 5 out of 5 stars 53 88 95 88.
Bulb type high output color temperature 3000k.
The 2011 progress report by illuminating engineering society of america ies stated as follows.