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starfish

Light Size

Hi im Wondering what size light would be ok in a 60x60x120

its for a friend and i don't know so I thought I'd ask you guys he has A 4inch extractor but due to the height issues I said a 250 watts hps would be to powerful thanks peeps 

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Hps - start with 250w and when hes got a few grows under his belt he could try 400w

 

Cmh - 315w

 

Led - wouldnt bother with that height restriction but if he was dead set on led then SMD is best for small spaces i pretty sure :)

 

Atb

 

JJ

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Thanks jam jar I know he got a digital ballast would he be ok to vertically hang the bulb 

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I'm using led in a 60cm cube. 

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I use a Dr60. It's a little taller @ 170... I think. 

Anyway, I have a 100w 3500K quantum board and a viparspectra 450w running side by side. (they recon they're 200/250w old skool equivalents) No heat issues at all....

 

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I use a Viparspecta 300 in a 60x60x160 tent no  heat issues at all. Only thing to watch, although almost no radiant heat if it's less than 6 inches away from the plants anything directly below the IR chips gets fried. 

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Thanks guys 

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