LED PANEL

I'd probably see if you can get them to give you the actually color temperature of the diodes in Kelvin. They list them as "white" which doesn't say a whole lot :D
Also, I'd see if they are willing to tell you what brand of diodes they are using, as that can make a bid difference in the quality and intensity of light they produce. Somehow, I am having a hard time believing that the panel actually produces the 3375 Lux that they are claiming. Especially considering that the diodes don't have any optics on them.

At that price though, it might be worth taking a risk.
 
I will ask it does seem to good to be true. If in theory it is a decent deal how many of these would I need for a 6 foot hood?
 
Well the seller says they come from China are 6600k temperature rating. So should I chance it and buy . Opinions please.
 
If it were under $35 it might be worth a try if you can afford to experiment. At $149.95 it's an expensive piece of future garbage.
The individual emitters are considerably more efficient than the typical garbage panel, but far less efficient than LED emitters.
They claim 36 watts, but twelve 3 watt emitters would put out blinding light compared to this thing.

Check out
http://www.rapidled.com
http://www.ledgroupbuy.com/
http://www.aquastyleonline.com/
for real LED kits. A bit of work would get you great light with good coverage for not a lot more than one of the panels.
 
Also, I've purchased stuff boostled.com with good luck. Their PAR30 bulbs are made with Edixeon 3-watt LEDs that crank out some serious light for their size.
 
The best thing is to email or call the folks at ledgroupbuy. They're great about answering question, even freshwater where they have little expertise. They have learned from their customers.
The number of LEDs per specific area depends on the class of LED emitters you use. Where we used to have to have 48 for a 12" x 48" surface, that dropped to 24 and now to just 12. If you go with the XM-ls at near their rated capacity, you probably only 18 to 24. You will have to have a dimmer though, to adjust the brightness.
 
I would definitely go with the Cree LEDs over the Chinese off-brand. Those XP-G chips are very nice as long as you don't need over 6500K. They put out about 122-139 lumens per LED so 12 LEDs would give you 1464 lumens. That's a pretty healthy amount of light, especially considering it's only using about 36 watts.
 
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