10 Amp Variac Variable Transformer with Isolation, 1000va Max, 0~130 Volt Output
Partial (or Limited) Isolation - The grounding pass through and bypasses the isolation, which means the grounding isn't isolated. You may be able to use a 3 prong to 2 prong plug adapter to on either input or output to cut off the grounding.
Variac is a variable transformer and 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 variac, 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 variac and it can be very dangerous. For example, if your device requires 5 amp, buy the variac with up to 10 amp. A rating of 1000VA means that at 100volt, the unit can sustain at maximum 10amp. If at 120 volt the unit can sustain at 8.3amp
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.