What if you only had few hundred bucks to spend? I have looked at the cxb cobs many times and just the leds and drivers exceed $600 for 450w 73k lm.
Lighting Easiest 1g per watt, led or HID?
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What if you only had few hundred bucks to spend? I have looked at the cxb cobs many times and just the leds and drivers exceed $600 for 450w 73k lm.
If you just want electrical efficiency stick a 400w hps over a 1.2x1.2m with a nice wide reflector. Should easily pull 1gpw. Or run it vertical and you can hit upwards of 1.5gpw. Same can be done with 600w in that space.
The only benefit higher end leds have is the same light for less watts and less hvac expenses.
The only benefit higher end leds have is the same light for less watts and less hvac expenses.
Cobs cwn have a better spectrum than hids except cmd lamps.
For a few hundred bucks search for gavita deals, i once found a 600w pro fixture for 300 pounds.
Or grab a dimmable digital ballast a cheap reflector and a 600w eye hortilux for around the same price.
Cobs are more expensive initially but payout themselves quick.
For a few hundred bucks search for gavita deals, i once found a 600w pro fixture for 300 pounds.
Or grab a dimmable digital ballast a cheap reflector and a 600w eye hortilux for around the same price.
Cobs are more expensive initially but payout themselves quick.
Depends on what you consider quickly. My 1500w grow just dropped to an 800w Cree Cob grow. $1300 with mostly DIY and one purchase. Maybe a small overall increase of light and mainly a better spread and less heat, but I'm expecting the same yields as before.
I'm gonna see $45 a month in electrical savings, and $70 bucks every hid bulb replacement, so a little over 2 years to get that money back.
Now in 2 years the technology we have now ($50 chips giving 150-220 lumens/watt) will probably be much cheaper and we should be able to safely replace HID with minimal additional startup.
I'm gonna see $45 a month in electrical savings, and $70 bucks every hid bulb replacement, so a little over 2 years to get that money back.
Now in 2 years the technology we have now ($50 chips giving 150-220 lumens/watt) will probably be much cheaper and we should be able to safely replace HID with minimal additional startup.
I am super stoked about LEDS and seeing how far and how quit the tech has progressed. If I get the chance I want to get like 10 of the Cree CXA3050 and build me a light, but damn they still kind of high ($20-30 each) Initial costs are up there, but I do believe it would be super efficient as opposed to HID. And one can for sure grow some monsters with em check this dude out, He's claiming 1.5 gram a watt, hell then he got like 4.5lbs off 1200 watt or he claiims ;-)
Consider running higher watts on the cxb3590 for more of a budget build. 1 cxb3590 72v @ 1.4A will output more than 2 cxa3050 36v @ 1.4A.
Cutter even has the 4000k 72v in the DB bin.
You have to consider space into GPW also. I got .5-.75gpw with my setup before. Since I upgraded my lights, space is the same and amount of light is too, just half the watts now. So same yield as before, just 1-1.5gpw. The only thing gpw shows is how efficiently you run your lights/space.
400w HID will net you 1-1.5gpw in a 4x4, or .5-1gpw in a 3x3. The goal for most of us is maximizing our available space, so we're already topped out for the amount of light we need and are limited by space and may be seeing 1gpw when we're doing good, and when we can cut the watts in half, that same goal becomes 2gpw(same yield).
Grams per watt per m2 per # of days would be like an accurate way to compare grows. And even then, genetics, style, and experience are left as variables.
Cutter even has the 4000k 72v in the DB bin.
You have to consider space into GPW also. I got .5-.75gpw with my setup before. Since I upgraded my lights, space is the same and amount of light is too, just half the watts now. So same yield as before, just 1-1.5gpw. The only thing gpw shows is how efficiently you run your lights/space.
400w HID will net you 1-1.5gpw in a 4x4, or .5-1gpw in a 3x3. The goal for most of us is maximizing our available space, so we're already topped out for the amount of light we need and are limited by space and may be seeing 1gpw when we're doing good, and when we can cut the watts in half, that same goal becomes 2gpw(same yield).
Grams per watt per m2 per # of days would be like an accurate way to compare grows. And even then, genetics, style, and experience are left as variables.
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Well the issue with GN1 is the price. Cree Cob tech out is better than lumiled rebel chips and for $500 you can get a 200w fixture, not 75w.
We should also be maximizing our space unless it's unlimited. Don't throw 250w of high powered LEDs in a 4'x4' unless you have space to burn. Sure you'll get an easy 2gpw, but also an easy 350g per m2. 400w would get you an easy 1.5g, or 425 gpm2. Squeeze an extra 75g per m2 of space. That's an easy goal for most growers and would be the equivalent of getting 1.2gpw with a 400w hps in a 4x4, or 1gpw with 600w. I'd rather run 600w HPS over a 4'x4' than 250w of the latest tech LED, 100g more yield for $70 extra in electricity over a 3 month cycle @ 18/6.
You can get an easy 1gpw with HID if you run half the lights you need for the space.
We should also be maximizing our space unless it's unlimited. Don't throw 250w of high powered LEDs in a 4'x4' unless you have space to burn. Sure you'll get an easy 2gpw, but also an easy 350g per m2. 400w would get you an easy 1.5g, or 425 gpm2. Squeeze an extra 75g per m2 of space. That's an easy goal for most growers and would be the equivalent of getting 1.2gpw with a 400w hps in a 4x4, or 1gpw with 600w. I'd rather run 600w HPS over a 4'x4' than 250w of the latest tech LED, 100g more yield for $70 extra in electricity over a 3 month cycle @ 18/6.
You can get an easy 1gpw with HID if you run half the lights you need for the space.
There is no mention of budget by the original poster and that's who my answer was directed at.
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