1、HIGH ACCURACY: The AVR board is applicable for 1FC6 brushless generator with high accuracy and reliability. 2、SIMPLE DESIGN: Automatic voltage regulator board adopts the simplest design and maximizes its function and performance. 3、SUPPORT DIY: The design of automatic voltage regulator leaves customers more space for DIY, which is more practical. 4、STURDY BOARD: Made of excellent PCB material, the voltage stabilizer is very sturdy and stable, will not easy to break or damage. 5、EXCELLENT COMPONENTS: Composed of excellent electric components, ensures high performance and stability of the voltage regulator. 1 x Automatic Voltage Regulator Item Type: Automatic Voltage RegulatorMaterial: PCBModel: 6GA2 491 1ADetection Input: Voltage: 230V 400VAC, accuracy: ±10%, single phase three phase optional, frequency: 50/60HzVoltage Regulation Rate: <± 0.5%, when engine variation <4%Voltage Adjustment Range: Not less than 95% to 105% of rated voltageSteady State Voltage Regulation Rate: ± 0.5%