1100% brand new and high quality. 2This product is a AVR(Automatic Voltage Regulator) for brushless alternator with adjustable voltage. 3The regulator monitors the exciter excitation current as a function of the alternator output voltage. 4Very simple in design, the alternator with shunt excitation has no sustaining short-circuit capacity. 5Made with flame retardant and heat resisting material, stable and reliable to use.Features:100% brand new and high quality. This product is a AVR(Automatic Voltage Regulator) for brushless alternator with adjustable voltage. The regulator monitors the exciter excitation current as a function of the alternator output voltage. Very simple in design, the alternator with shunt excitation has no sustaining short-circuit capacity. Made with flame retardant and heat resisting material, stable and reliable to use.Specification:Power input: Voltage 120 (90-140) VAC, single phase two line Magnetic field output: Maximum 100VDC at input voltage 120VAC Continuous current: 8ANon-continuous current: 10A within 10 seconds Voltage regulation accuracy: 0.5% RMS (engine speed variation is within 4%) Package weight: 330g (approx.) Package List:1 x Automatic Voltage Regulator Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.