250w, 400w or 600w which is best.

donpacino · Post by **donpacino** » Mon 4th Oct 2010 05:49 pm

Im planning on buying a small grow tent, 1.2m x 1.2m x 2m to grow no more than 3 plants at a time, so i was wondering if anyone had any advice they could offer in regards to which light would be best, taking in to consideration amount of plants, power usuage and potential of being caught by thermal imaging?

gixxer · Post by **gixxer** » Mon 4th Oct 2010 05:51 pm

i use a 600watt, but others will say 400,,,personally i think if your ventilation and fresh air are good you can use 600

Prestoned · Post by **Prestoned** » Mon 4th Oct 2010 06:46 pm

600w has the most lumens per watt ratio. Its almost double a 400w in lumens! 250w I dont know about.

As long as you get a decent extractor fan and a good enough intake fan, youll be fine. Just dont vent directly outside into the real world. Will show up. Exhaust back into your house (you will have to dust abit more oten though).

Cut holes into doors not walls if you have to go down that route in your ventialtion setup.