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Need help deciding what light to use

Arow21264

New Member
Hey guys it’s gonna be my first time growing autos and I’m only using a small tent. 80x80x160cm, I’m planning to put 4 autos in there and I’m wondering what light to use. Either 600w which pulls 265 actual wattage or 900w which pulls around 410 actual wattage. The 600w has a flowering coverage of 2.5x2.5 ft and the 900w has a flowering coverage of 3x3 ft. Basically I’m asking would the 900w be overkill in such a small tent? Or would it be better and achieve better results than the 600w? Any help will be appreciated, thanks
 
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MochaBud

Member of the Month: June 2020
Welcome to the forum @Arow21264 :welcome:
Hey guys it’s gonna be my first time growing autos and I’m only using a small tent. 80x80x160cm, I’m planning to put 4 autos in there and I’m wondering what light to use. Either 600w which pulls 265 actual wattage or 900w which pulls around 410 actual wattage. The 600w has a flowering coverage of 2.5x2.5 ft and the 900w has a flowering coverage of 3x3 ft. Basically I’m asking would the 900w be overkill in such a small tent? Or would it be better and achieve better results than the 600w? Any help will be appreciated, thanks
As mentioned, your tent is WAY too small for 4 plants :hmmmm: Ima be honest with you, I couldn't put 1 of my plants in that tent without it rubbing all 4 sides, and possibly touching the top...Imagine one of these in your tent :jawdropper: this is half of an 8ft x 4ft x 7ft tent

 
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NuttyProfessor

Grow Journal of the Month: Mar 2021
i am just starting a regular12/12 and went with the 600w led for one plant mainlined flip next week

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Founder
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gr865

Well-Known Member
Hey guys it’s gonna be my first time growing autos and I’m only using a small tent. 80x80x160cm, I’m planning to put 4 autos in there and I’m wondering what light to use. Either 600w which pulls 265 actual wattage or 900w which pulls around 410 actual wattage. The 600w has a flowering coverage of 2.5x2.5 ft and the 900w has a flowering coverage of 3x3 ft. Basically I’m asking would the 900w be overkill in such a small tent? Or would it be better and achieve better results than the 600w? Any help will be appreciated, thanks

Sounds like you are not looking at anything but LED's. I switched to 315 CMH. I do not like that the penetrating power of the LED is not there.
You tent is too small as noted.
 

TorturedSoul

Member of the Month: May 2009, Oct 2010, Sept 2017
An old-school 250-watt HID would be enough for growing and flowering autoflowering strains in a space that size.

You could get something like this:

...and turn it down a bit and still be able to grow/flower whatever strain you wanted in there. At 100% power, it'd probably be adequate for a 3'x3' space. Maybe a square meter (~39"x39"), at least for autoflowers. So it would give you a little room for upgrading the size of your space in the future. It's also likely to last long enough to do so.
 
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