what kind of electrical upgrades will i need with 6/600hps

My guess is you should have 120 amp panel with 20 amp breakers for your lights, 15 amp for the rest except dryers,air cond, stove and so forth. and you should be golden, 'course I'm just guessing.

get 3 20amp breaker circuits runing to your room. enough for 7200ws.

Originally Posted by Silicity

get 3 20amp breaker circuits runing to your room. enough for 7200ws.

Agreed. 3600 watts of light require 30 amps of circuit.(watts divided by volts = amps) That’s not taking into account the extra wattage that is lost through ballast, though. That's also assuming you are in the USA and using 120 volts. If you add in a few extra amps for the ballast, lets call it 35 amps. 3 twenty amp circuits gives you 60 amps available. Subtract 35 amps for lighting and you’re left with 25 amps to play with. I’m guessing that with that much firepower, your going to want a reasonable amount of exhaust and circulation fan running. I can only guess what you might be using, so I’ll throw out a guess of 10 amps, just to be on the safe side of things. That leaves 15 amps. If you will need supplemental heat or AC, 15 amps is cutting it too close. If you wont need either, go with the 3- 20 amp circuits. If you think you might, I would suggest 4- 20 amp circuits minimum. If you are actually setting up a full room and not just an enclosed grow space, you should consider just going with a 100 amp sub panel. I know it sounds like over kill, but, trust me you’ll be glad you did. Grow rooms have a way of collecting electrical appliances you never thought would be there. By putting in a sub panel, You have the ability to add more circuits easily and amperage to spare. As far as costs go, if you are paying someone, the labor should be roughly the same and the extra cost for larger feeder wire and 100 amp sub panel and breaker should cost you around $150 extra. Personally, I think it will be worth the extra. Make sure you use someone who’s qualified. Having a fire because of a botched wiring job is a real bummer, but having one that exposes your grow will find you kicking yourself in your own balls for the mistake. Go Green man!

thanks guys

I'm an electrician and u need run those lights off 240 volt circuit. U will use less amps which is less heat and less on ur electricity bill. For anyone who doubts this go to grow room setup and look at post 110 vs 220 and it gets explained. Just simple ohms law math.

Originally Posted by Vonkins

I'm an electrician and u need run those lights off 240 volt circuit. U will use less amps which is less heat and less on ur electricity bill. For anyone who doubts this go to grow room setup and look at post 110 vs 220 and it gets explained. Just simple ohms law math.

no ones doubting ya, does the electric company charge a surplus for more power being sent? either way your in for a huge power bill. also if you run off 1 240v circuit you can have all of your likes run 1/and or 2 timers.

Originally Posted by Vonkins

I'm an electrician and u need run those lights off 240 volt circuit. U will use less amps which is less heat and less on ur electricity bill. For anyone who doubts this go to grow room setup and look at post 110 vs 220 and it gets explained. Just simple ohms law math.

Your utility bill is the product of all KWH used within the billing period. And your KWH usage will be the same if the lights are using 120 or 240. The above poster is not correct about having a lower bill if 240 is used.

@arctic

i was not stating this was true i was asking an electrician wether or not they charge extra depending on your energy consumption which some companies do, so fuck off.