wattage

the title pretty much explain my question. i am trying to buy a 1000w hps light with a 120v/240v switchable ballast. but my house is a 20A 110v. am i going to have a problem with that? appreciate for help.

I'm on a low budget for a while, one of the last things I need to finish is 2700k CFL's. For some reason the 250W is cheaper than the 200W. But my lamps say max 200W. Will the 250W bulb work on the 200W max lamp? I am assuming the 250w CFL will work on the lamp but the output will only be...

trying to work out my overall electric bill, will a 600w light use 600w including the ballast? has anybody ever tested the wattage

Hello, I'm curious if anyone in this forum has identified an accurate calculation for LED wattage per one plant. Presuming I want to grow only a single plant, most LED light solutions are overkill. It may be more cost effective to have LEDs on a per-plant basis for people with constrained...