1,The Automatic Voltage Regulator realizes the automatic adjustment of the generator output voltage by controlling the excitation current of the generator.2,High voltage stability, suitable for 220/400V AC brushless generator.3,Low frequency and slow voltage function.4,Built-in high breaking capacity fuse for better .5,The voltage regulator uses retardant and high temperature resistant components to safety use.Model: GAVR-20BDetection input: voltage 220/400V ACPower input: voltage 170-270V AC single-phase two-wireField output: voltage 240V AC input, maximum 90V DC current 20A continuousVoltage regulation accuracy:Less than 1% (engine speed variation is within 4%)Due to different production batches, the appearance may be different, which does not affect the useColour:blackMaterial:ABS+PCBPackage Contents:1 x Automatic Voltage RegulatorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.