Feature:1. FULL PROTECTION: The voltage regulator board has built in low speed, over excitation, over voltage, and over current LAM functions to ensure safe operation.2. ABS HOUSING: ABS has good insulating properties, is light and wear resistant, and the regulators made from it are durable.3. AUTOMATIC REGULATION: This voltage regulator board can automatically adjust the voltage to ensure the stability of the voltage and make your generator work stably.4. COMMON ACCESSORIES: This voltage regulator board is one of the common accessories for generators, it can regulate the voltage quickly and stably.5. RELIABLE PERFORMANCE: The setting method of this voltage regulator board is simple, easy to use, and stable and reliable in performance.Specification:Item Type: Automatic Voltage Regulator BoardMaterial: ABSModel: MX321Power Input: 170-220VAC (PMG)Induction Detection: 190-264VACVoltage: 120VDC (Maximum) Current: 3.7A (continuous), 6A within 10 seconds (instantaneous)Protection Function: Built in low speed, over excitation, over voltage, over current LAMVoltage Regulation Rate: 0.5%.Package List:1 x Automatic Voltage Regulator Board1 x Instruction