EX ELECTRONIX EXPRESS Variable Transformer, 500 VAC Max, 0-130 Volt Output, 5 Amp

This variable transformer is a great device for quality control testing, equipment testing on low and high voltage, control over heat, speed, and more. In order to purchase the right variable transformer, it is critical that you know the amp usage by your electronic device. It is always best to be conservative otherwise you risk destroying the variable transformer and it can be very dangerous. For example, if your device requires 5 amp, buy the variable transformer with up to 10 amp. A rating of 500VA means that at 100volt, the unit can sustain at maximum 5amp. If at 120 volt the unit can sustain at 4.1amp. Note - Indoor use only. Do not operate in a condition that may cause electrocution and fire. Do not operate in a wet environment. Do not operate near flammable substance.