First off its a balast saying that therefor brings me to the point that its a 120v power source, so yeah if u live in the us 120v is standard. Plug it in! i would suggest using a surgeprotector, Its gonna suck alot of power to, so make sure ur electrical wireing is good aswell. dont want to burn down the house. Read all the info that came with the balast and make sure it specs with everything ur useing, timers and surgprotector. It might be a good idea to just follow the wattage reading on a surgprotector as well, they might give u a clue as to how much power u can really savor from on plug. i wouldnt suggest plugging alot into one outlet box.