World Wide Input Voltage 100-240VAC 50/60Hz. NEW Global 24V AC / DC Adapter Compatible with Tech STD-2437 Switching 24VDC 24Volts 24.0V Power Supply Cord Cable PS Battery Charger Mains PSU Charger/Adapter has total 10 Ft Long power cord. Safety Features: Over current protection; Total power protection; Over voltage protection; Short Circuit Protection. Manufactured with the highest quality materials. Certification: FCC, CE and RoHS.