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Need help with a newb lighting question

GreatWhiteBud

Well-Known Member
I currently have a 6 tube 4 ft T5 HO fixture with 6400 K bulbs (324 watts)that i am using to veg in y 4x4x6 tent. I am looking to use this fixture as side lighting with switching 4 of the 6 6400 K bulbs out for 2700 K bulbs and hanging a HID above the plants. I am using a 4 inch ventilation fan and temps are around 76 degrees F and humidity is around 45-50% depending on rain fall.

Should i go with 400 or 600 watt HPS? I will still have the 324 watt T5 HO side lighting and was wondering if i would run into heat issues with my current set up/ventilation if i opted for the larger 600 watt light.
 

jaymu86

New Member
I currently have a 6 tube 4 ft T5 HO fixture with 6400 K bulbs (324 watts)that i am using to veg in y 4x4x6 tent. I am looking to use this fixture as side lighting with switching 4 of the 6 6400 K bulbs out for 2700 K bulbs and hanging a HID above the plants. I am using a 4 inch ventilation fan and temps are around 76 degrees F and humidity is around 45-50% depending on rain fall.

Should i go with 400 or 600 watt HPS? I will still have the 324 watt T5 HO side lighting and was wondering if i would run into heat issues with my current set up/ventilation if i opted for the larger 600 watt light.
I would say in the 4x4 alone the 600w would be way too hot for the 4" u need a 8"fan to pull that out

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