Any DIY grow light setups that could replace a 1000w HPS grow light?

Hi there, I am currently designing a cannabis grow operation. Right now, I have 1 1000w HPS grow light for every 16 sq ft of grow space, giving each sq ft about 62.5w (close to the ideal 65w/sq ft). LED grow lights aren't really in our budget, but I've heard you can cut the cost by around 3x if you make your own. I'm used to traditional HID and don't know much about LEDs, but I know LEDs have a "true wattage" that is lower than the claimed wattage of the system, that is changed by a number of factors, and I know 1 LED light can't typically replace a single HID. Does anyone have any DIY LED light(s) that would replace a 1000w HPS light? I have a partner that used to be an electrical engineer that could put the wiring together.

A little background info: We are currently planning a hydroponic rockwool, sea of green, ebb and flow, clone system with ebb and flow tables 4 ft by 4 ft trays with the water basin below the table.
I want to experiment with the idea of LED lights so we can use a racking system so we can maximize our sq ft and to cut monthly costs. I understand I won't be able to afford as many lights I would with HID, but I wanted to see if I could increase net profit with cheaper monthly costs. We're not set on the 4ft by 4ft tables, we could change dimensions if it would work better. If we did get the rack system to work, we would probably use the same ebb and flow SOG method. Thanks in advance for any info!

I have built COB lights using CXM-22's 12 per light and they are replacing 1kW DE HPS lights. It can be done.

The whole claimed wattages c should be discounted as you will see lights that pull 150 watts claiming to replace a 1000 watter but they can't. You need around 35 - 40 watts per sqft of quality LED to replace a HPS at 60 watts per sqft. The bigger energy savings is in heat, since the LED's don't put out the IR wavelength like the HPS does you actually need to run the canopy temps a few degrees hotter, say 83 - 85F instead of 78-80F. So the LED puts out less heat and you can run warmer, some energy save there. A LED also distributes the light more evenly so you don't have the bright middle and weak edges, this makes for better yields in most cases.


Check out that design...

HLG is pretty much considered king of LED around here
LED Gardner has some great info

If you are doing a large setup id consider sourcing boards from china.

Too piggy back on the China sourcing... not sure how the CoronaVirus is affecting this supplier but these are the exact same components HLG buys but then beefs up the framing/heatsink/etc then double or triples price...

Best deal.. Ask for carmen hu through the chat and tell her exactly what you want.

If you want to build a multi level set up then you want to aim for something that doesn't need to be too far from your plants.
So run strips or boards ran soft.

Typically using 4 v1 boards from HLG and the right driver would replace a se 1000w hps. But when you want to run closer quarters its best to run more of them with the power spread across to minimise height needed.

Some strips you could look at are Bridgelux EB gen 3 or cutter.au 's cree J series. Or you can look at boards like the v1 from HLG which can achieve 200lm/w

I think @lukio may be able to link a good example of a multi level racking set up from insta.

Given you can use 480-600w of top end LEDs over a 4x4 space on multiple levels you could increase your output per square foot of floor space substantially though you would have to adapt your grow and training style to match the set up.

sup! yeah racks are my thing at the mo, im at work but will post links to bits and pieces later if you want em.

fragileassassin said:

HLG is pretty much considered king of LED around here

Quantum Boards®

Quantum Boards® by Horticulture Lighting Group Quantum Boards® are our line world's highest efficiency horticulture light engines. Checkout our grow Lamps powered by these light engines.

horticulturelightinggroup.com

LED Gardner has some great info

LED Gardener - Modern indoor growing

Modern indoor growing

ledgardener.com

If you are doing a large setup id consider sourcing boards from china.

Click to expand...

Let us not forget Timber Grow Lights....awesome build, spectrum, intensity, Timber rocks it as well.
FF

Here's a great example. i cant see a better way to maximise space, and for this reason alone i reckon LEDS absolutely destroy HPS. Ive ordered racks and need to buy strips soon.

I will probably go with these 4ft strips from Digikey.


I already flower under ~3600w of Samsung Quantum Boards and im a big fan of LED

Renfro and CoreyWebster are spot on

hi can i ask if u endet up buying this led lights??