How many watts on 240v?

[NorCalHal]

How about a regular house outlet.. how many amps are they??

A regular house outlet is 15-20 amps @ 110. So it's good for 1 1000watt light.

 

[Timmyjg6]

Thanks, i need to do some math on my room and make sure im all good.... i guess start adding up all them amps from everything...

 

[NorCalHal]

If you are running a 1000w in a bedroom , there are also a couple of other things to look at.
Find the breaker for that particular room and see what outlets that one breaker controls. they normally contol a few. So, everything plugged into those outlets cannot exceed the amps the breaker is providing. Does this make sense?

You might have to run some x-cords to distribute power to your room as not to exceed the one breaker.

 

[The Hemp Goddess]

How about a regular house outlet.. how many amps are they??

Most rooms have 15 amp breakers. Kitchens, however, usually have 20 amp breakers. Multiple rooms are sometimes run on one breaker. You can go to your breaker box and look. Most newer homes have 200 amp service coming in.

Since I had room in my breaker box, I ran a dedicated line with a 20 amp breaker for my flowering room and a 15 amp breaker for my vegging room.

 

[Hick]

Most rooms have 15 amp breakers. Kitchens, however, usually have 20 amp breakers. Multiple rooms are sometimes run on one breaker. You can go to your breaker box and look. Most newer homes have 200 amp service coming in.

Since I had room in my breaker box, I ran a dedicated line with a 20 amp breaker for my flowering room and a 15 amp breaker for my vegging room.

"Perfect".. and with 10/2 Romex, too, I hope...
If I'm wrong, a "sparky" will correct me, I hope...
10 gauge wire(10/2) for 20 amp breakers, and 12 G. (12/2) for 15 amp... is that a "requirement" for code?.. or only "suggested"..

 

[Brouli]

yaa u got it right

 

[The Hemp Goddess]

Actually, I think that code is 12/2 for 20 amp and 14/2 for 15 amp, but I had a roll of 10/2, so that is what I ran for both. It gives me the option of upping the breaker amperage if I want to.

 

[Dr. Manny Bowles]

Here's some old info I got from OG-





SAFTEY WARNING : Only use 80% of the circuit breaker capacity!

Common Conversions North American and other 110 volt countries

Lights :
1000W / 110V = 9.1A
600W / 110V = 5.4A
400W / 110V = 3.6A
250W / 110V = 2.3A

Circuits :
10A * 110V = 1100W and 80% safe usage is 880W
15A * 110V = 1650W and 80% safe usage is 1320W
25A * 110V = 2750W and 80% safe usage is 2200W
30A * 110V = 3300W and 80% safe usage is 2640W

Common Conversions British Commonwealth and other 240 volt countries

Lights :
1000W / 240V = 4.1A
600W / 240V = 2.5A
400W / 240V = 1.7A
250W / 240V = 1.1A

Circuits :
10A * 240V = 2400W and 80% safe usage is 1920W
15A * 240V = 3600W and 80% safe usage is 2880W
25A * 240V = 6000W and 80% safe usage is 4800W
30A * 240V = 7200W and 80% safe usage is 5760W


How many lights/watts can I put on a 15 Amp service?

The rule of thumb is to only load a breaker up to 80% of its capacity. On a 15-amp service with 14/2 gauge wire one should only load it up to 12 Amps MAX. Since most lights will draw 1 amp per 100 watts a 15-amp breaker can handle one 1K light each. This brings up another point in home growing. That it is always good practice to have the fans and the light that they cool on the same breaker. That way if the breaker is somehow tripped (Murphy's Law) then both the light and its cooling system are down. Instead of the cooling system for the light going down and the light still blazes away because it was on another breaker.

Note: above figures are estimated based on 110V supply.

 

[Growdude]

Here's some old info I got from OG-





SAFTEY WARNING : Only use 80% of the circuit breaker capacity!

Common Conversions North American and other 110 volt countries

Lights :
1000W / 110V = 9.1A
600W / 110V = 5.4A
400W / 110V = 3.6A
250W / 110V = 2.3A


Common Conversions British Commonwealth and other 240 volt countries

Lights :
1000W / 240V = 4.1A
600W / 240V = 2.5A
400W / 240V = 1.7A
250W / 240V = 1.1A

.

I agree 100% on the 80% rule but these figures are really quite low most dont add up to the total wattage, remember I x E = watts and these dont allow for any losses in the ballast.