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If you need to control voltage for motors, testing equipment, or any AC-powered device, this variable transformer gives you full control.
It's a single-phase unit that takes 110V AC input and lets you dial the output from 0 all the way up to 300V AC – so you can fine-tune power delivery to whatever you're running.

Inside, it's got a built-in pure copper coil – no cheap aluminum – which means it runs efficient, durable, and with minimal waveform distortion.

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Safety-wise, it's got fuse protection for overcurrent, thermal, voltage overload, and short circuits – plus a grounding port for extra security.
Max output is 500 VA, so it's great for motor speed controllers, label printers, labs, railroad testing, telecom gear, and more.

4.3 out of 5