Description: Type: AC / DC power supply Modulation method: pulse width modulation (PWM) Transistor connection: full bridge Input voltage: 110-240V Output power: 18W Output voltage: 12V Output ripple noise: 50Mv Output current: 1.5A Working frequency: 50-60Hz IC smart solution 431 precision voltage regulator With overcurrent, overvoltage, overtemperature, overload protection Package Includes: 1Pcs Switching Power Supply Board