GEREE Power Supply Module LM317 Voltage Regulator AC/DC 3-24V to DC 1.25V-27V Continuous Adjustable Voltage Regulator Input Voltage: DC 3-40V AC 3-24V Output voltage: 1.25V-27V adjustable. Output current: 5MA-1.5A . Output short-circuit protection ; Overcurrent, overheating protection; Adjust pipe security protection. Package Include:1X AC/DC to DC LM317 Power supply Module