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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
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Description
Lightspeed CMH 315W 3100K Double Jacketed LampSwitching from a 1000 watt high pressure sodium or metal halide system to a Lightspeed 315W ceramic metal halide system will increase the growth, health, and yield of your plants and will lower your energy costs by up to 70%. The wide spectrum of our Lightspeed CMH bulbs allows either the 3100K or 4200K to be used from the vegetative phase straight through to flowering, or for maximum growth and yield begin with the 4200K bulb for vegetative and then
Switching from a 1000 watt high pressure sodium or metal halide system to a Lightspeed 315W ceramic metal halide system will increase the growth, health, and yield of your plants and will lower your energy costs by up to 70%. The wide spectrum of our Lightspeed CMH bulbs allows either the 3100K or 4200K to be used from the vegetative phase straight through to flowering, or for maximum growth and yield begin with the 4200K bulb for vegetative and then switch to 3100K for the flowering phase.The lower wattage of our 315W CMH bulb versus the standard 1000W HID bulb translates to less heat being expelled from the bulb and the ability to place the grow fixture closer to the canopy, increasing light intensity and canopy penetration. This double glass jacketed lamp features a bi-pin PGZ18 lamp base and is rated for either open or enclosed fixture use. The ultra-efficient ceramic metal halide system can do the same job as MH and HPS with better results, using less power and emitting less heat. Lightspeed 315W ceramic metal halide bulbs pair well with any bi-pin 315W system, like our Silverstar CMH Reflector 315W Ballast System or the Lightspeed Digital CMH Ballast.
Specifications:
- Wide spectrum can be used from the vegetative phase straight through to flowering
- Produces less heat than traditional grow lights
- Lowers electricity and cooling costs
- Can be placed close to canopy for optimum intensity
- Deep canopy penetration
- Watts: 315
- Kelvin: 3100
- 620 µmol/s
- Color Rendering Index (CRI): 90
- Initial Lumens: 35400
- Base: PGZ18
- Length: 193mm (7.6”)
- Diameter: 38mm (1.5”)
- 1 Year Warranty
Shipping weight: 0.51 lbs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
The cutest backpack!
Size: One Size, Color: Lilac Ditsy Floral
I was worried maybe this backpack wouldn’t last us the school year. I was pleasantly surprised as we are nearing the end of the year. It’s the most adorable pink and purple bag! It is on the smaller side but we’ve still been able to fit a normal sized folder in it plus her extra clothes and snacks with some room still.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
VERY NICE BUT TOO BIG
Size: One Size, Color: Lilac Ditsy Floral
Let me start by saying its a great product and looked to be made very well. I did have to return it though because it was far too big for my child. Other than size being 1 size fits all with no dimensions given and, yes, somewhat smaller than other backpacks (for adults) it seemed to be a decent backpack. Too bad we couldn't use it but if you have a older kid would would great for.
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Reviewed in the United States on December 5, 2025
★★★★★ 3
Size too small.
Size: One Size, Color: Beige Leopard
It was too small. Couldn’t fit my everyday planner in it.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Good Quality
Size: One Size, Color: Light Pink
Bought this for my 2 year old daughter for daycare. Big enough to fit her blanket, diapers wipes and extra clothing. Good quality and fits her well. She loves it.
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Reviewed in the United States on December 3, 2025
★★★★★ 4
Too small
Size: One Size, Color: Light Blue Shark Waves
Its too small for my kindergartener.
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Reviewed in the United States on December 9, 2025