I have a question about lighting but it's not about cops, I need use more than 15 amps at times and as most of you know ordinary house circuits can handle about 15 amps and if more, the breaker trips off. What can i do about this, call a electrician?
Reassess your lighting requirements.
For small/medium sized grows there's no need to use 2 x 1000w HIDs. 1000w HIDs are extremely innefficient in terms of lumens per watt, mostly due to the excessive heat they give off and having to have them so far away from the plant tops.
For example. One 1000w MH HID gives out 120,000 lumens and should light an area of about 6ft x 6ft (36 sqft) and uses on average 9.5 amps on a 120v circuit.
Two 400w MH HIDs give out about 55,000 lumens each, and should light an area of 4ft x 4ft (16sq ft x 2 = 32 sq ft) but because the 400w HIDs don't give off as much heat as a 1000w HID you can get them closer to the plant tops thus giving them more light at the plants tops than the 1000w would. The 2 x 400w HIDS would output less amps as well on average 3.8 x 2 = 7.6amps on a 120v circuit.
Yes, the initial purchase price of 2 x 400w systems is going to be more than 1 x 1000w system, but due to the fact that the 2 x 400w systems use 1.9amps less per hour (228watts) which is equivalent to $0.41 a day (asssuming a cost of $0.10 per kilowatt hour and 18 hour days) you'd save $36.90 on a typical 90 day cycle.
This is just an example, I don't know your exact situation but you need to think very carefully about your lighting requirements, area and running costs before automatically getting the biggest one available. You also need to bear in mind that if you have separate vegging and flowering areas, plants in vegetative growth require 1/4 of the light plants require in flowering, so you'd need less lumens for the vegging area than the flowering area and thus a smaller light.