[Function]: This automatic voltage regulator is used to control the output of gasoline electric generator, by increasing or decreasing the generator control voltage, the output voltage of the generator increases or decreases accordingly [Easy to Install]: Mounted near the generator and connected with several wires to measure and adjust the generator; The wire direction might differ, as the blue square might be in left or right, please take the real one as standard [Excellent Performance]: Special arc-shaped automatic voltage regulator, It is sealed with resin which provides a better moisture and vibration resistance. It has a aluminum housing which is rust resistant and can offer a good protection [Widely Used]: The voltage regulator is suitable for 2KW-3.5KW single phase generators, widely used for for 2KW to 3.5KW, gasoline generator Specifications: color: as show size: as show Housing Material: Aluminum Detection Input: 16~25VAC 50HZ Power Source Input: 60~100VAC 50HZ Output Voltage: 100VDC (at 85V input) Output Current: 2A continuous Voltage Regulation: <1% (generator rotational speed is within 4%) Temperature Stability: Voltage drift 0.05%/ Package Includes: 1 x AVR