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. 1 x Automatic Voltage Regulator Board1 x Instruction 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%