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How about 850 watts for $775? Grow Light Science Progrow-850 made for 5x5 Has plenty of 660nm light & has two more light bars than the se7000. I bought and am liking my Progrow-320. I bought it because I can try it risk free for 120 days. I wish I was growing auto-flowers so I could leave the...

Choice depends on how you grow. I think multi-bar fixture are ideal for sea-of-green farmers & short tents.

Can you return the 8" supply fan swap for a 6"er?

Your post will look neater if you click on the insert link icon (chain looking icon at the middle of menu bar) to turn a long url into a few clickable words.

I initially wanted to buy an Atreum Lighting's Hydra-3200 until I saw their warranty. I bought a Progrow 320 , with a similar warranty, but GLS has a Try for 120 day risk-free return policy & a sale priced PG-320 was hard to beat.

I'm liking the latest AC Infinity controller units. The duct fan speed change is triggered by temperature & humidity. The Vapor Product Deficit app reports that the tent weather is pretty good. You can set a minimum duct fan speed with these controllers so odor control lever stops. My 2 year...

LM301b & h are SMD (Surface Mounted Devices).

Progrow 320 on sale for 295.00. Free shipping & 120 day return for any/no reason full refund policy. Designed to veg & flower a 2x4. Great PAR map. I bought one 3 weeks ago.

I like Grow Light Science LED grow lights. So does Shane at Migro. I bought the Progrow 320 for my 4x2 tent at $295 which is 25% off normal price. Nice PAR map Nice Spectrum 6 Dimmer settings 0, 20, 40, 60, 80, 100% and external control. Dimmer knob is part of the uPowerTek LED driver.

Grow Light Science's Progrow 640 is on sale for $595. You'd need two for the 8x4. I bought the Progrow 320 for a 4x2.

Grow Light Science is sending me a replacement light due to the gouged plastic. The driver has heatsink like fins on it's sides and that is what I believe gouged the plastic. The driver was covered by a foam sheet during shipment but the fins cut thru the sheet.

Progrow 320 from Grow Light Science is on sale for $295. Designed for a 2'x4' tent. I received mine yesterday.

Grow Light Science is having a 'up to 25% off' sale. I order the Progrow 320 and unboxed it today. It was shipped in a plain brown box. The light's build looks & feels like high quality. The driver sat between two of the LED bars during shipment. I think the driver might have moved during...

Just bought a Grow Light Science Progrow 320 for $295. MSRP = $395

Higher power units could have superior PAR maps. It's possible that the higher wattage fixtures use more led bars or quantum boards.

I'm getting a handle on Vapor Pressure Deficit using the SensorPush HTP.xw sensor and WIFI Gateway.

What do you all think about the Atreum Hydra 3200 4x2 grow light? It has 4 bars so it has good coverage even when close to the canopy. CCFC discount code (10%) knocks price down to $377.10 which puts it in the same ballpark (tent) as the SP3000.

Apple Betty would be gr8!