all this proves is you live in an old house with shitty electricalYou don't have 25 amps. Several sockets are on each circuit. You may have two or three rooms all on one circuit. You will need the figure out which sockets are fed from each breaker. Sockets on both sides of a wall may share a breaker. All the sockets on one side of the whole house may share one breaker! Two 600 watt lamps will draw a little over 12 amps. That's all you can safely put on one 15 amp circuit. Figure out how much power you have available and on what outlets and breakers and then plan your room. I plugged a vacuum cleaner into a socket ON THE OTHER END OF THE HOUSE and tripped the breaker for my lights. Two bathrooms, part of my kitchen, and one side of my grow room are one circuit. Part of my living room, two bedrooms, the hallway, and the other side of my grow room are on the other. I could use up to 30 amp, but I'd have no TV, lights, etc. in the rest of the house.