What is the CMH (Ceramic Metal Halide) grow lights?

Also known as, LEC or Light Emitting Ceramic, the popularity of CMH is catching up with any weed growers because of the efficiency of the light, which is especially good for crop photosynthesis. CMH grow lights also go by the name Ceramic Discharge Metal Halide (CDM), the lights use ceramic technology and they have the qualities of metal halide and HPS grow lights.

The lights use ceramic arc tubes very similar to the tubes in HPS grow lights. They also operate at much higher pressures than the quartz tubes glass tubes of metal halide grow lights. CMH grow lights, just like all other grow lights, come with their own advantages and disadvantages. Before we review some of the best CMH grow lights in the market and below are detailed buying guidelines for ten of them but before that, below are the reasons why you should switch to chm grow lights.


Why should you start using/switch to CMH grow lights?

The grow lights competition is one of the stiffest for indoor weed growers. For you to get the best results out of your crops, you need to keep up with the latest technology and do away with the old. CMH is one of the latest grow light technologies taking the weed growing market by storm.

Before you decide on whether you want to change to this new technology and give your crops better service, it is good to understand what makes hem a popular choice for many growers and what the downsides are.

Nanolux CMH 630W Double Lamp Fixture

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CMH lamps have a very broad light spectrum which is more similar to the sun itself than any other form of HID lamp. Nanolux has 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 PAR/Watt compared to other forms of HID lighting. The CMH fixture can be used as a primary veg light or a supplemental full spectrum light.

HID technology gets even better with light output that is the closest to natural sunlight that money can buy! The Nanolux CMH 630W Double Lamp Fixture is winning over commercial growers because of its high-quality spectrum and energy-efficient design. This double ceramic metal halide has superior AR/Watt efficiency compared to other types of HID lighting. Bulbs NOT included.


? Fully sealed, commercial-duty ballast

? Lightweight, with cool operation

? 97% reflectivity

? Excellent for large operations that need light overlap

? Precise wireless computer control with NCCS APP (Nanolux cloud control system)

? ETL listed


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630W CMH Enclosed reflector: Size:24″ Long x 12.5″ Wide x 12″ High, 16AWG/3C SJTW 1200V 6?15P Plug cord, L=16FT, Suitable for PHILIPS GreenPower CDM-T Elite Agro 315W Lamps

630W Digital Ballast: Case size: 273.5* 178* 110mm (10.76′? * 7.00′? * 4.30′?), Super cute and light, Input: 120~240V or 240V / 50~60Hz, End of Lamp Life(EOL)Protection, Short circuit protection, Open circuit protection, Ignition failure protection, Thermal protection

315w CMH (3100K) bulb: High 1.95 PPF per second light source 3100k color temperature, High 92cri, 33,000 initial lumens (105Lm/W) , High 90% lumen maintenance at 8,000 hr / High 85%, Expected Life Span (hr): 20,000 ,Unique Open Rated Lamp construction reduces radiant heat from the arc tube

Low heat, close to the sun light, could replace traditional 600W 1000W grow light kit and 300w 600w 1000w grow light kit, 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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Easy hang up

Reinforced Metal Internal Gears Ratchets, Loose-proof Design,

8-ft Long & 150lbs Weight Capacity

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CMH 315W bulbs

High 1.95 PPF per second light source , 3100k color temperature.

High 92cri, 33,000 initial lumens (105Lm/W) , High 90% lumen maintenance at 8,000 hr / High 85%E

xpected Life Span (hr): 20,000

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Ceramic PGZ18 lamp socket

PGZ18 lamp holder

Suitable for PHILIPS GreenPower CDM-T Elite Agro 315W Lamps

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High-Reflectivity Aluminum Hood

High-Reflective and durable Aluminum used for the light hood

Unit has an excellent light reflective rating of 98%


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  • This Grower?s Choice 630W Ceramic Metal Halide is the best hydroponics supplied you should choose for your plant. This CMH system come with 1 complete lighting fixture and 2 cmh 315 single endled lamps. Dimmable Option allow lamps of various wattages to be operated in the same unit simply by adjusting the dial on the ballast.
  • Grower?s Choice 630W CMH have Smart Start Ignition Control & Soft Start Technology. This commercial grow light has lots of advantages to help growers to increase yield.
  • This Indoor garden grow kit also has Automatic Frequency Adjustment, Full Circuit Protection and RF Shielding!Compare to General hydroponics system, this grow light Uses Advance Square Wave Low Frequency Technology for ultimate efficiency!
  • Grower?s Choice fixture provide full spectrum of lighting. It?s the Grow lights for seed starting,veg, flowering. It is a commercial grow light, customer can use it for greenhouse, but also can use in a grow tent.

Product Description

The newly redesigned Grower?s Choice NS Double Ended fixture is boasting the famous Grower?s Choice Spectrum that was horticulturally engineered to replicate and harness the forceful penetrating power of the sun.

The new Grower?s Choice Horticultural CMH Lighting Fixture GC-630NS offers ultimate control of spectral output with two horizontally placed lamps that allows the ability to mix spectrums for an optimal full phase broad spectrum that will let all your specialty flowering plants reach their maximum potential.

Grower?s Choice 630W NS Double Ended Ceramic Metal Halide Grow Lamp Fixture comes with Low Frequency Square Wave Technology for Indoor Grow for plants.

This fixture is controller compatible, it can work with the Grower?s Choice controller.

The unit rated main voltage:120V/240V.

277V and 480V commercial grade voltage is availble for pre-orders.

This unit is ETL Listed, United States Federal NRC Licensed,UL Pending.

Fixture: 23*15*17 inch

Display Weight :28 lbs

Shipping Weight: 50lbs

1*630W NS Complete Fixture

1*315W 3KR and 1*315W 3K Lamp for this listing.


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