Opinion On This Light

[MrFortwenty]

They are not a sponsor here, so I cannot link to their web page. I'm looking at this light for my 2.3x2.3x5 grow tent. What are your thoughts on this light? Cobs to close together? Too much light for my space?

Draws 275+ Watts from the wall
Dimmable From Outside Enclosure
Approx. 46,500 Lumens
CREE CXB3590 COB LED DB BIN Chips
Meanwell HLG 240H 1750B Power supplies
Warrantied & Sold From North America
White Cree 4x3500k
Very Tight Beam Angle (90°)
Veg & Bud
Recommended for 2.5x2.5 area
Replace 400+ Watt HPS
Approx 50% Less Heat than 400 hps
12" x 12" x 3"

 

[gbauto]

Should make a nice 250W spotlight.

 

[MrFortwenty]

Should make a nice 250W spotlight.

uhh....ok?

 

[Berulakide]

Cobs are too close together. I think I know where you got them they make one with 12 around a square box frame. The cobs should be a foot apart or so I think.

 

[MrFortwenty]

You may be right. It seems there are quite a few of the pre-fab cob fixtures that have them this close. I could name a few manufacturers, so are they really too close? The beam angle seems ok for the light spread.

 

[gbauto]

uhh....ok?

If you actually had some specs showing the distribution at given distances it would be obvious.

 

[MrFortwenty]

Here's some PAR maps, only 24 inches 4x4 and 5x5 though.

 

[MrFortwenty]

If you actually had some specs showing the distribution at given distances it would be obvious.

Any comment?

I'm really just interested in getting one of the best lights for my 2.3x2.3x5 grow tent, and moving my Mars II 400 over to strictly vegging plants

 

[PurpleGunRack]

COBs are way too close to each other on that lamp.

You're better off getting a COB kit from Kingbrite, or building your own COB or Board/Strip light

If it's for flowering only, get 2700K/3000K 90CRI COBs.

 

[PurpleGunRack]

It would be perfect for that area, and yes you're on the limit of having too much light for that space without supplying CO2, but the driver is dimmable so you can run it as soft as you like. 3000K is best for flowering/general use combo.
If HLG have what you want in stock, ordering directly from them is best.

You could also do a build like this:

4x QB132 3000K = $140
1x Meanwell HLG-240H-C1750 = $80
You also need some wires, connectors and hangers, but still a lot cheaper than that kit.