10-480vac input up to 15.6kva. 30amps. works. can be used on lower voltages. commonly used to gently bring up electronic equipment that has been sitting(this can heal aged caps gently) , controlling dc or ac motors, plating, troubleshooting older arcade monitors, arc welders, tube amps, power supplies etc. this is not the 1200w unit it weighs maybe 75lbs jim show contact info