I am thinking of up grading to a 600w hps from the 400w hps I currently have been using. Its a closet grow 2' x 5' x 7', with 4 WW clones in a DWC hydro set up.I have good venting in and out and keep the area cool using a portable ac unit, My questions are will the 600w be overkill, will the temps be much higher, will the 600w cause my electric bill to rise much more than the 400w which you can't hardly notice on my bill, and will my yield be increased any more than the 400w? With 2 weeks veg. period under floro's and 6 to 8 weeks flowering under the 400w hps I usually get a little over a 1/4 lb. per grow.I don't mean to ask so many questions but I want to be sure that it will be worth the effort.
Peace,
JD
Peace,
JD