There is a third type which is a hybrid between the two as well.
Ceramic discharge grow light.
Hids are available in two types.
Double jacketed lamp can be used with or without glass lens not included.
Hps lamps range from 20 30 and metal halides range from 60 65.
The composition of these lights result in a far more efficient operation a fuller spectrum of light and lower heat output.
Applications for these lamps include television and film making shop lighting digital photography street lighting architectural lighting and agricultural lighting including grow lights.
Our total system approach integrates the best available cdl ceramic discharge lamp also known as ceramic metal halide lamp and light emitting diodes leds with electronic gear light fixture and optics into each product.
Ceramic metal halide cmh grow lights are a relatively new type of hid lighting and outperform traditional mh and hps grow lights.
In fact the color rendering index cri for ceramic lamps ranges from 90 92.
That adds up to a high efficiency lamp that s specially designed for your crop s next growing stage.
Choose from our ceramic metal halide philips you are now visiting our global professional lighting website visit your local website by going to the usa website you are now visiting the philips lighting website.
To give you some perspective the sun s cri is 100.
High intensity discharge grow lights high intensity discharge lights or hids are large bulbed systems that create light by igniting a gas inside the bulb.
Cmh lamps use 20 of the power of comparable incandescent light bulbs for the same output 80 117 lumens watt and retain their color spectrum better than most other gas discharge lamps making them a great option for indoor grow lights.
Cmh grow lights have many names like light emitting ceramic lec and ceramic discharge metal halide cdm.
This 315 watt philips ceramic discharge metal halide bulb gives off 34 300 lumens with ultraviolet light included in its spectrum.
A cmh light was first exhibited by the thorn lightin.
They re a variation of the traditional metal halide light type with some features of hps technology high pressure sodium added into the mix.
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.
Ceramic metal halide grow lights including lec grow lights and other ceramic discharge metal halide cdm systems are quickly becoming the preferred hid of many growers thanks to their superior horticultural spectrum and exceptional efficiency vs conventional hps mh grow lights unique cmh characteristics provide extended lumen maintenance and deliver outstanding par watt or ppf.
This mixture creates a spectrum close to that of the sun and emits a stunning crisp white light.