I was wondering if there was any type of device that would change the voltage to 240v from 120v. I got a ballast that can run both and would like to use 240v to run more things. Right now I only have 15 amps at 120v. Rewiring is not an option for me at all. Neither is hiring a professional. Does anyone know of a converter that will plug into a 120v recepticle and convert that into 240v to allow me to operate more watts?

Nothing like can help you as the bottleneck is going to be the 120v circuit which has only 1 hot to begin with. The neutral can't push the extra watts you want.

Its very easy to just get a new breaker and run two hot legs with lets say a 12-2 wire that you can just get from your local hard ware store. If you don't know what your doing then don't touch it.. But if you have some electrical experience it will only take a few minutes

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muffys right if you want that receptical to be 220 itll have to be rewired or you could find a transformer to switch 110 to 220 but good luck on that

get a double pole 20 amp use the black and white as hots and use your bare for your ground and neutral

need 220 recep and when you put the new breaker in you breaker box make sure you are on two legs not and not one

to check that use any standard volt meter and stick the red probe one breaker and the black on the other it should read 240 or close to that if its not you need to move the breaker up or down a few spots and keep checking . " IF YOU READ ---- THAN YOUR ON THE SAME LEG IF YOU CHECK THE BREAKER ONE AT A TIME AND IT SAYS 120 on each but ------- YOU NEED TO MOVE UP OR DOWN A FEW SPOTS

muffy has the right answer,I dont think they make a converter but even if they did,you would still be limited by your orignal 15 amp breaker. at best you could only produce about 1600 watts of 220.
kangamangus stated that rewiring is not an option but if anyone else is considering doing this. please use 12/3 romex to keep the ground & neutral seperate.it doesn't cost a lot more to do it right.

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I have heard there is a way to bridge the 110's, I don't no how that would be accomplished, but cow is right you would be limited by the circuit.

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