What is a CMH grow light? - 420 Guide for Beginner
The only disadvantage indoor WEED growers have over outdoor growers is the lack of natural light from the sun. However, this disadvantage does not deter indoor growers from getting the best out of their cannabis. Indoor weed looks healthier and it grows faster than that grown outdoors.
What you may consider a disadvantage is therefore an advantage. Indoor growers can control the growth of the crops by using nutrients, water and an effective lighting system. Grow lights are therefore a necessity for every indoor weed grower. There are different types of indoor grow lights that weed growers use for the different cycles of crop growth.
Light Spectrum
Ceramic Metal Halide grow lights produce very high quality light for the plants. They have a very high CRI, which means the light they produce mimics the quality of sunlight. A great deal of that light produced is in the PAR spectrum. Since CMH grow lights produce a full spectrum of light, it will produce some UltraViolet and InfraRed light. These parts of the spectrum are very helpful for warding off pathogens like mold and mildew, and even some pests. Plants grow more healthfully under CMH grow lights than LED grow lights. And one more thing about CMH light spectrum, since it’s a complete spectrum, you’ll be able to see the plants clearly, without using color adjusting grow room glasses. But if you’re growing with LED grow lights, you’ll probably benefit from using grow…. On the other hand, Light Emitting Diodes (LEDs) produce light in a specific, and narrow, wavelength. The hundreds or thousands of diodes are not replaceable.
The Advantages of CMH Grow Lights
There’s a reason people are looking into CMH grow lights, and it’s the huge list of advantages when compared to almost every other grow light option.
Balanced spectrum
Not only do you get a more balanced spectrum that hits almost every sweet spot for your plants but they’re also better at turning your electricity into usable light.
By comparison, HPS and MH lights waste a lot of energy producing light at ranges that are not efficiently used by plants. This means that CMH are more PAR efficient than either HPS or MH, making them a better single light solution.
Color Rendering Index
They also have a more natural CRI (Color Rendering Index). CRI describes how the color of a light source changes how an object appears to the human eyes and how well subtle variations in color shades are revealed. The higher the CRI, the more realistic things look. CMH grow lights are generally rated between 80 to 96 CRI, by comparison, the sun is rated at 100 CRI. This means that CMH grow lights will let you see the true color of your plants without making your grow room look yellow, blue or purple.
Yield Lab 630w Dual Bulb CMH Grow Light Kit
This CMH grow light kit offers dual Yield Lab 315w 3100K CMH bulbs to give your plants a strong light to grow under with a balanced spectrum of blue and red wavelengths to mimic the high noon sun. In fact, these bulbs are so balanced they even offer your plants an extra UVB spectrum most other MH bulbs leave out.The open wing design of the reflector also helps dissipate heat toward the top of the light instead of down toward the canopy of your plants.
As well, its dimmable ballast allows you to decide whether you want 50%, 75%, or 100% of this CMH’s light, so if you’re looking for a powerful light that can still keep things relatively cool, the Yield Lab Professional Series 120/220v 630w Dual Bulb CMH Open Wing Complete Grow Light Kit is the kit you’re looking for.
Lightspeed 630W CMH DE Grow light
Designed for Ceramic Metal Halide technology the Lightspeed CMH 630W DE Lighting System reflector features intense lumen output, even distribution, and deep canopy penetration. The horizontally installed double-ended 630W CMH bulb (Not included) provides a wide and complete spectrum, with greater efficiency and lower heat output when compared to HPS or MH lamps. Designed for use with the Lightspeed 630W DE CMH bulb, it is suitable for most 630W K12X30S base double-ended CMH bulb.
Manufactured with a German textured aluminum reflector and featuring a low frequency, square wave technology ballast with integrated soft start the Lightspeed CMH 630W DE Lighting System is a smart and economical way to take advantage of the latest technology in hydroponic growing and indoor gardening.
Features:
German textured aluminum reflector
Patented Intelligent source controller with auto-adapt light decay technology
Low frequency, square wave technology, soft start ballast - Short-circuit/circuit overheat/ lamp-failure protection
Internal RF shielding
THD (input) <6%
Non dimmable
Ignition distance up to 20 meters
Powder coated frame and casing
8ft power cord included
What you may consider a disadvantage is therefore an advantage. Indoor growers can control the growth of the crops by using nutrients, water and an effective lighting system. Grow lights are therefore a necessity for every indoor weed grower. There are different types of indoor grow lights that weed growers use for the different cycles of crop growth.
Light Spectrum
Ceramic Metal Halide grow lights produce very high quality light for the plants. They have a very high CRI, which means the light they produce mimics the quality of sunlight. A great deal of that light produced is in the PAR spectrum. Since CMH grow lights produce a full spectrum of light, it will produce some UltraViolet and InfraRed light. These parts of the spectrum are very helpful for warding off pathogens like mold and mildew, and even some pests. Plants grow more healthfully under CMH grow lights than LED grow lights. And one more thing about CMH light spectrum, since it’s a complete spectrum, you’ll be able to see the plants clearly, without using color adjusting grow room glasses. But if you’re growing with LED grow lights, you’ll probably benefit from using grow…. On the other hand, Light Emitting Diodes (LEDs) produce light in a specific, and narrow, wavelength. The hundreds or thousands of diodes are not replaceable.
The Advantages of CMH Grow Lights
There’s a reason people are looking into CMH grow lights, and it’s the huge list of advantages when compared to almost every other grow light option.
Balanced spectrum
Not only do you get a more balanced spectrum that hits almost every sweet spot for your plants but they’re also better at turning your electricity into usable light.
By comparison, HPS and MH lights waste a lot of energy producing light at ranges that are not efficiently used by plants. This means that CMH are more PAR efficient than either HPS or MH, making them a better single light solution.
Color Rendering Index
They also have a more natural CRI (Color Rendering Index). CRI describes how the color of a light source changes how an object appears to the human eyes and how well subtle variations in color shades are revealed. The higher the CRI, the more realistic things look. CMH grow lights are generally rated between 80 to 96 CRI, by comparison, the sun is rated at 100 CRI. This means that CMH grow lights will let you see the true color of your plants without making your grow room look yellow, blue or purple.
Yield Lab 630w Dual Bulb CMH Grow Light Kit
This CMH grow light kit offers dual Yield Lab 315w 3100K CMH bulbs to give your plants a strong light to grow under with a balanced spectrum of blue and red wavelengths to mimic the high noon sun. In fact, these bulbs are so balanced they even offer your plants an extra UVB spectrum most other MH bulbs leave out.The open wing design of the reflector also helps dissipate heat toward the top of the light instead of down toward the canopy of your plants.
As well, its dimmable ballast allows you to decide whether you want 50%, 75%, or 100% of this CMH’s light, so if you’re looking for a powerful light that can still keep things relatively cool, the Yield Lab Professional Series 120/220v 630w Dual Bulb CMH Open Wing Complete Grow Light Kit is the kit you’re looking for.
Lightspeed 630W CMH DE Grow light
Designed for Ceramic Metal Halide technology the Lightspeed CMH 630W DE Lighting System reflector features intense lumen output, even distribution, and deep canopy penetration. The horizontally installed double-ended 630W CMH bulb (Not included) provides a wide and complete spectrum, with greater efficiency and lower heat output when compared to HPS or MH lamps. Designed for use with the Lightspeed 630W DE CMH bulb, it is suitable for most 630W K12X30S base double-ended CMH bulb.
Manufactured with a German textured aluminum reflector and featuring a low frequency, square wave technology ballast with integrated soft start the Lightspeed CMH 630W DE Lighting System is a smart and economical way to take advantage of the latest technology in hydroponic growing and indoor gardening.
Features:
German textured aluminum reflector
Patented Intelligent source controller with auto-adapt light decay technology
Low frequency, square wave technology, soft start ballast - Short-circuit/circuit overheat/ lamp-failure protection
Internal RF shielding
THD (input) <6%
Non dimmable
Ignition distance up to 20 meters
Powder coated frame and casing
8ft power cord included
Conclusion
No doubt CMHs are efficient and durable grow lights that will bring great yield for your hydroponic gardens. So I hope this guide has shed some cannabis grow lights for you about this great technology and help you pick the suitable CMH systems or bulbs of your choice.
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