2.5" x 4.5" x 6.5" grow area - 400w HPS or 600w HPS?

Looking for advice on the above question...

I will be venting heat exhaust from the reflector to the attic, so HOPEFULLY heat won't be a problem.

Right?

Would a 400w or 600w be best for that amount of space?

Thanks RollItUp

more is better, and your yield will probably be bigger. go for the bigger watt especially if heat is not an issue.

a 600 is what you need

fat sam said:

a 600 is what you need

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With out a doubt, this one