Flower Footprint: 3' x 3'
Grower's Choice 315W Single Ended CMH Bulb
Ceramic Metal Halide lamps are the pinnacle generation of HID lighting. Utilizing ceramics materials instead of quartz for the construction of the arch tubes, which contain the metal halide gas that causes the lamps to operate at higher temperatures, increasing efficiency and providing a more complete spectrum, covering the inadequacies standard MH and HPS poses.
This makes CMH lamps a better option for horticulture as they efficiently produce more light across the PAR spectrum where it matters most.
Grower’s Choice has four different CMH spectrums lamps to customize the light output for every stage of plant growth for optimal harvest potential. For growers using dual lamp models lamp spectrum can be further customized by utilizing different spectrum lamps in the same fixture. We found that 3k + 3K-R provides the best results during the flowering phase, finishing with the 10k lamp in during the last 1 week before harvest.
3K 315W Single Ended CMH:
- Color: 3100K
- Type: SE-CMH
- Wattage: 315W|
- Initial Par: 570 umol/s
- CRI: 90
- Hours: 15,000
Grower’s Choice 3k-CMH lamp utilizes a full phase spectrum that is designed to be used in all stages of growth but optimized for bloom. With a Color Rendering Index of 90 the GC 3k spectrum is very close to natural sunlight but with modest blues, extra red and UV light to serve your plants photosynthetic needs during the flowering phase increasing yields and resin production. Completely silent in operation.
- Contains precision gasses for enhanced spectral output
- Generates much less heat than HPS and MH
- More closely matches sunlight than ANY other lighting solution available
- Growers report tighter inter-nodal spacing and better yields on flowering plants
3K-R 315W Single Ended CMH
- Color: 3000K
- Type: SE-CMH
- Wattage: 315W
- Initial Par: 540 umol/s
- CRI: 90
- Hours: 15,000
The Grower’s Choice 315w CMH Lamps are suitable for use in all standard 315w CMH fixtures. The 3K-R is an enhanced version of our 3K lamp that is designed specifically for plants that are prized for their resin production. It is similar to the original 3K, but it has contains a few subtle differences.
- A slight increase in UV light to promote resin production
- A taller peak in the Far-red to stimulate metabolic activity during flowering
- Slightly higher PAR for better flower density
- Increased intensity in red
4K 315W Single Ended CMH
- Color: 4200K
- Type: SE-CMH
- Wattage: 315W
- Initial Par: 540 umol/s
- CRI: 98
- Hours: 15,000
Grower’s Choice 4k-CMH Daylight lamp is the best option for hearty vegetative growth leading to a healthy bloom phase. With a Color Rendering Index of 98 and intense full spectrum the Grower’s Choice 4k lamp provides near sunlight photon output. This leads to healthier and more robust vegetative growth.
- Contains precision gasses for enhanced spectral output
- Generates much less heat than HPS and MH
- More closely matches sunlight than ANY other lighting solution available
- Growers report tighter inter-nodal spacing and better yields on flowering plants
10K 315W MH Finishing Lamp
- Color: 10,000K
- Type: SE-MH
- Wattage: 315W
- Initial Par: 450 umol/s
- CRI: 90
- Hours: 10,000
The addition of 10K UV light towards the end of the bloom cycle increases resin production in flowering plants as a defense mechanism in response to the ultraviolet light. Now, growers using CMH fixtures can get these benefits too with the industry’s first and only 315w 10K MH Finishing Lamp.
- For use in 315w CMH fixtures
- Strong UV peaks for increased resin production
- Can be used for 25+ flower cycles before replacement
- Use only in the last 7-14 days of flowering
- Durable quartz glass arc tube ensures long usable life
Warranty & Return Policy
Every Growers Choice Light is 100% guaranteed and has a complete 1 year warranty.
Grower’s Choice offers a warranty ONLY to purchasers of Grower’s Choice products that are bought through an authorized distributor. Warranties are only valid through the original purchaser with their purchase receipt. The warranty will not carry over to second-hand owners. All warranty claims must be submitted through the retail/online store purchased from or through Grower’s Choice. Customers must first ship back the defective units to be evaluated for repair or replacement (at their own cost). Once repairs or replacement has been processed Grower’s Choice will ship back the units, free of charge, as a courtesy (must be within the 48-contiguous states). If you are international, duty & taxes will be applied by customs & you will be liable for all fees. If products are misused, mishandled, or tampered with in any way your warranty will be voided indefinitely. In the event, you need to process another warranty claim & you have not closed out your previous warranty claim, no warranty will be processed, as your warranty has been voided. Do not throw Grower’s Choice products out or cut any power cords until approval is provided by Grower’s Choice via email. If expedited shipping is required for replacements, you will be liable for the cost & must notify Grower’s Choice right away. If you are unable to provide proof of defect for your warranty, you can request a return label. Once the product is returned to Grower’s Choice, it will be tested. In the event Grower's Choice is unable to identify a defect, you will be liable for round-trip shipping. If you are shipping a return to Grower’s Choice be sure to provide a picture via email of the drop-off receipt provided by UPS. This will provide confirmation that the package has been handed off to UPS & removes you from reliability if lost by UPS. It is always the purchaser’s responsibility to keep track of return shipping & replacement tracking. If you notice any delays or concerning notices on your tracking, reach out to Grower’s Choice right away, do NOT wait several days before contacting. TSL Horti-Tech and Growers Choice shall not be held responsible for any damage caused by the operation of the unit, be it incidental or consequential or any type including, without limitation, damage or injury caused to other products, machinery, or buildings. Nor will responsibility be accepted for loss of time or profit, or for any inconvenience caused in any way whatsoever.
Return policy:
Grower’s Choice ONLY accept returns within 30 days of purchase, in original packaging/unopened, & with prior authorization from Grower’s Choice representative or manager. A restocking fee of 25% will be charged on all returned items, as well as roundtrip shipping, once the inspection has been completed, a credit memo will be provided according to our inspection findings. If the return is opened/used, missing any items or is incomplete additional charges will be applied.
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