Hello guys.
Whats the best option for a 3.5x3.5 tent? A 400w HPS or a 315w CMH?
Thank you.
Whats the best option for a 3.5x3.5 tent? A 400w HPS or a 315w CMH?
Thank you.
Lighting 400w HPS or 315w CMH?
- Thread starter Green Gelato
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Trichome farmer
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id say there both pretty similar hps bulbs will be cheaper than the cmh ones but the cmh will have a better spectrum than the hps what sort of budget are you working with have you thought about led
Wico
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It's just the lumen per watt and the spectrum that you should care about... 40k/m² is perfect and the CMH is the clear winner on spectrum of those 2. So the CMH 315W is out of the 2 a perfect choise for a 3x3 grow space. But if you have the money go for an LM301 LED solution instead. For a 3x3 you will need around 180W of actual power, so buy a 2 x 288 QB and dimm it to increase efficiency
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Thank you for your answer!!!
In my country the LED options are reduced and expensive, do you know the Lumatek Attis 300w?
Its better than 315w CMH?
Is this one that you recommend? I dont think so, 2 of this is cheaper than 1 CMH 315w
Wico
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Thank you for your answer!!!
In my country the LED options are reduced and expensive, do you know the Lumatek Attis 300w?
Its better than 315w CMH?
Is this one that you recommend? I dont think so, 2 of this is cheaper than 1 CMH 315w
I would not buy the Lumatek. Don't trust that kind of lamps that have huge power claims but don't mention the output in lumen. It could still be (easily) better than the CMH 315W but it will never beat an LM301 based lamp
That is indeed what I recommended BUT this is only the board, you still need a power supply (Meanwell with A, B or AB at the end which indicate dimming support) and a heatsink. But I know you will find kits around 200USD that are more or less plug and play. I have no experience but I thought Koray was a good one to buy from.
https://www.alibaba.com/product-detail/240W-Meanwell-Driver-288-V2-with_62186352026.html
Although this one looks very neat with the cover and dimmer build in:
Pre Assemble Vertical Farming 240w Led Plant Light Samsung Lm301h Mix Red 660nm Grow Light Led - Buy Grow Light Led,Pre Assemble Indoor Plant Light,Led Grow Light Product on Alibaba.com
Pre Assemble Vertical Farming 240w Led Plant Light Samsung Lm301h Mix Red 660nm Grow Light Led - Buy Grow Light Led,Pre Assemble Indoor Plant Light,Led Grow Light Product on Alibaba.com
www.alibaba.com
660nm and 730nm are there to stimulate bloom and growth. I have the Rspec (660nm) and got a 150 gram yield (24/0) with only 90W light power
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