How many lumens for 315W CMH Grow Light? Guide 2020

Ceramic metal-halide bulbs are the grow lights of the future. But before we get to the pros and cons of LEC (Light Emitting Ceramic) lights, I just want to cut to the chase and give you our picks for the best CMH system.

What is a CMH Grow Light?
CMH grow lights operate a lot like a regular metal halide (MH) grow light except instead of using quartz they use a ceramic arc tube, very similar to what’s used in HPS grow lights. This is why they’re often called “ceramic metal halides,” and they have some distinct advantages! Compared to regular MH bulbs, CMH lights give off a more natural color, produce more light per watt, and last longer.

Advantages of CMH grow lights
Broad spectrum
This is the first winning point of CMH over HPS grow light. CMH bulbs have much a wider and more consistent spectrum.

So besides having enough light intensity, plants also love to have sufficient light colors/quality to have their best growth potential.

More UV rays
Under high pressure, CMH bulbs can produce powerful light output that contains Ultraviolets (UV) like the sun.

These UVs include UV-A, UV-B, UV-C, especially UV-B which is really helpful for plant growth, overall all 3 types of UV are harmful to human eyes.

Different brands of CMH grow lights have different lumens. Generally the lumen per watt is about 110.

Grower's Choice 315W CMH Kit

Grower’s Choice Horticultural Lighting has introduced their first digital 315 watt ceramic metal halide fixture. It utilizes advanced low frequency square wave technology and high efficiency 315 watt ceramic metal halide grow lamp. The Growers Choice Horticultural Lighting 315w SE CMH Complete Fixture comes with one 315w SE CMH lamp of your choice (4 options). Comes with a 120v power cord.

The Growers Choice Horticultural Lighting 315w SE CMH Complete Fixture delivers the highest efficiency and closest spectrum to actual sunlight in the commercial horticultural industry. The wide spectrum of light, including ultraviolet and infrared light, provided by the Growers Choice Horticultural Lighting 315w SE CMH Complete Fixture is perfect for promoting vegetative growth to increase the health and vigor of your plants and ensure a rich harvest.

DimLux Expert Series 315W CMH Grow Light


Dimlux Ceramic-Discharge Metal Halide systems deliver a spectrum that's much closer to natural sunlight than typical high-intensity discharge (HID) systems. These state-of-the-art lamps generate a greater level of usable plant light (photosynthetically active radiation) and run with a blinding intensity that's immediately apparent to the naked eye. Dimlux has embraced this exciting new technology, creating an innovative range of systems that take all the positive attributes of the outstanding Expert Series and then supercharge them to step performance up to the next level!