Automatic Voltage Regulator AVR Low Frequency PWM Protection 4A Output for Diesel Generator Feature: 1. Voltage Regulator: This automatic voltage regulator can regulate the voltage in a stable value with 1.0% constant voltage regulation.2. High Safety: Equipped with low frequency protection and over excitation protection function, AVR generator ensures high operating safety.3. Better control: Adopting IGBT pulse width modulation full range control circuit with 4A output, AVR enables easier control and use.4. Stable Starting: The self-excited automatic voltage regulator has a high transient response, which will largely facilitate stable starting.5. Easy to Install: Compact size and light weight, the wiring of this AVR diesel generator is very convenient to do. Specification: Item Type: Automatic Voltage Regulator Model: KR620 Material: ABS Package List: 1 x Automatic Voltage Regulator How to use: Install in use.