The lamp is seated in a ceramic tube which may be heated above 1200 k.
Ceramic discharge metal halide lamp.
A cmh uses a ceramic arc tube similar to those used in hps grow lights instead of the quartz used in traditional metal halide grow lights.
Philips lighting introduces mastercolor cdm elite agro 315 w t12 metal halide lamps for horticulture market.
The ceramic discharge metal cdm halide lamp or ceramic metal halide cmh lamp is a relatively new source of light and is an improved version of the high mercury vapour lamp.
Choose from our ceramic metal halide philips.
Mastercolor elite ceramic metal halide ed 17 4200k lamps provide excellent lumen maintenance and outstanding performance over time in the familiar ed 17 lamp shape.
Ceramic metal halide grow lights are basically a variation of mh grow lights with a little of hps added into the mixture.
The 2011 progress report by illuminating engineering society of america ies stated as follows.
315w cdl agro lamp is made by philips lighting belongs to the ceramic discharge lamp cmh family also known as cdm and lec.
Metal halide mh lamp arc tubesare made of either quartz or ceramic see figure 1.
Ceramic arc tubes allow higher arc tube temperatures which manufacturers claim results in better efficacy color rendering and color stability.
Ceramic metal halide lamps with clear tubular or coated ellipsoid outer bulb tailor made to replace and outperform quartz metal halide lamps on existing gear.
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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The ceramic tube is filled with mercury argon and metal halide salts.