The last CFL max lighting question

newbienewb

newbienewb

Member
I have done the readings, and am currently running a little less than 200W and having a good grow so far, with no meltdowns.

What is the maximum wattage I can wire up and get out of one plug?
Im new and a little retarded when it comes to electrical, so I dont understand the math. watts, amps. miniamps... agghhhh.:confused:

anyone let me know
thanx in advance.

ps - im not going to do anything stupid like hang 20 more lights just cuz it can handle it, Im quite happy with the current set up, just wondering where my current setup fits in.
 
I

Illegal Smile

Guest
It is a matter of what is on that circuit in addition to that outlet. If you happen to have an outlet on a circuit alone, you won't have to worry about it. Figure out what else is on the same circuit. If nothing big like heat producing appliances, then try to reduce what is on it and you should be good. If you have doubts then you need to get someone who does basic electric to come check it for you. It doesn't have to be a licensed electrician. I had a dedicated circuit added to my closet with 8 outlets for $100. By the way you should think in terms of adding light for flower.
 
KiLLeR RiP 420

KiLLeR RiP 420

Active Member
Most modern residential circuits are 15 or 20 amps, so we're looking at a max load of either [SIZE=-2](15A x 120V =)[/SIZE] 1800 watts or [SIZE=-2](20A x 120V =)[/SIZE] 2400 watts before the breaker trips. The breaker will be labeled either 15 or 20. I'm unfamiliar with old-style fuse-type circuits but I'm guessing they're also around 15 or 20 amps.

For continuous loads (on for more than three hours) the limit is 20% lower. So for 15-amp breaker, you can't draw more than 12 amps from the circuit for more than three hours, or 1440 watts (12A x 120V). And what do you know, the wattage of a huge window-unit AC or a large electric space heater is... 1440 watts
 
newbienewb

newbienewb

Member
KiLLeR RiP 420 said:
Most modern residential circuits are 15 or 20 amps, so we're looking at a max load of either [SIZE=-2](15A x 120V =)[/SIZE] 1800 watts or [SIZE=-2](20A x 120V =)[/SIZE] 2400 watts before the breaker trips. The breaker will be labeled either 15 or 20. I'm unfamiliar with old-style fuse-type circuits but I'm guessing they're also around 15 or 20 amps.

For continuous loads (on for more than three hours) the limit is 20% lower. So for 15-amp breaker, you can't draw more than 12 amps from the circuit for more than three hours, or 1440 watts (12A x 120V). And what do you know, the wattage of a huge window-unit AC or a large electric space heater is... 1440 watts
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Thanx alot, that makes me feel better.
 
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