High-quality materials: high-quality capacitors, single-phase two-wire selection Magnetic field output: maximum 90VDC at 207VAC input. Detection and power input: voltage 120V (95V-132V) / 240V (190V-264V) VAC Single-phase two-wire selection Current: 4A continuous, 10A uninterrupted within 10 seconds Voltage regulation accuracy: Less than ±1%RMS (engine speed changes within 4%) Different factory batches may have different words and colors, but it will not affect the use Color: black Material: Plastic Package Contents: 1 x voltage regulator board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.