exactly what maphisto said!! it is an excellent unit for someone who has never grown before, and the unit is built really well with high quality components. the wiring looks like it could have come out of the sony factory, it is that professional. but heat is definitely an issue. mine is currently running during the day, but my next crop will be at night. I have the door to the producer open with a portable air conditioner pointed at it. I also have the vents from the lights ducted into a 6 inch 450cfm vortex fan that vents out the bottom of my shed. on the plus side, when the cold weather comes it will do a nice job of warming the shed. as for noise, it is not a lot of racket, but certainly it would be equal to a 15 year old refrigerator that is constantly on, and if you add a vortex fan that is like a hair dryer on low. I picked mine up for $1800 with all the nutes. I could not have bought all the components for that much up here in canada, and the people at bcnl have been very helpful when i have called them with questions. I am very happy with mine, but i think however someone sets one up they will have to tailor there situation a bit to suit it. mine is now set up great!!!
