What is a Ceramic Metal Halide Grow Light?
First of all, what are these lights actually called? Ceramic Metal Halide (CMH)? Light Emitting Ceramic (LEC)? Or are they Ceramic Discharge Metal Halide (CDM)?
The truth is that all those different names are talking about the same Ceramic Metal Halide (CMH) technology. LEC is actually a trademarked term for a CMH brand. In order to avoid confusion, I’m going to be using CMH in this article, which is the most common term.
Ceramic Metal Halide grow lights are basically a variation of MH grow lights with a little of HPS added into the mixture. 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.
Advantages Of CMH Light
Spectrum
The CMH light spectrum combines the red-heavy HPS spectrum with the blue-heavy MH spectrum in one bulb, making it the perfect light for all stages of growth. With a high CRI, it is extremely close to natural sunlight, which is great for your plants and for your eyes (plants look more natural, making it easier to spot any discolorations or other issues).
Better PAR Efficiency
One of the reasons many growers are switching to CMH grow lights is due their excellent PAR efficiency, which is much better than that of many other types of grow lights. Other grow light models such as MH and HPS waste too much energy, which does not help with crop growth.
Heat Consumption
Despite running at high temperatures, CMH grow lights produce less heat compared to many other grow light models in the market. The bulbs of the grow lights do not burn the leaves of the crops and it is one of the best options to use in a grow room or a GROW TENT for a good yield from efficient growth.
Disadvantages Of CMH Light
Like everything else, there’s not a perfect lighting solution. Thus, the CMH also comes with its own disadvantages. The UVB rays that these lights produce are said to be harmful to humans. Adequate safety equipment may be necessary in order to reduce any damage to eyes or skin. Currently, the high setup cost of the CMH can also be seen as a downside.
Since the CMH technology is still new, it costs so much more than the traditional bulbs, such as the CFL, although this is somewhat seen as a double-edged sword. While the initial cost may be high, its long-term running cost is close to that of LED grow light or HPS grow light.
Best CMH Grow Lights for Sale 2020
Cycloptics Greenbeams 315W CMH Grow Light
This is the complete Ceramic MH fixture that comes with ballast, bulb, and reflector. The Cycloptics reflector comes with a 6 foot lamp cord. Plug and play able to go out of the box. We recommend the Philips 4200k (full spectrum) bulb for supplementing HPS bulbs and for vegetative growth.
Greenbeams can be utilized in both small and large scale grow room applications. Depending on the level of light required, we will resolve the optimal number of lights required to meet your needs, whilst maintaining the most productive spectrum and highest levels of uniformity.
PowerSun 315W CMH Fixture
The hottest technology in energy efficient HID lighting is now available. Ceramic Metal Halide, or CMH for short (some refer to it as CMH), is becoming more popular in the horticultural industry.
The CMH lamps have a very broad light spectrum which is more similar to the sun itself than any other form of HID lamp. We have taken CMH technology and increased its operational efficiency, making the most comprehensive spectrum of light output for an HID fixture even better. The CMH lamps also have increased efficiency in AR/Watt compared to other forms of HID grow light.
The CMH fixture can be used as a primary veg light; a primary light for SOG applications; or a supplemental full spectrum light for large flowering operations.
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