Input: 100-240V 50-60Hz PK-Power products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specification OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) COMPATIBILITY: Please see full list of Replacement for models in the Product Description Our After Sale Service: Our friendly and reliable customer service will respond to you within 24 hours. PK Power Barrel Tip AC/DC Adapter for Model ZBHWX-A2900020-B ShenZhen Heweixing Technology ZBHWX-A290020-B ZBHWXA2900020B Power Supply Cord Cable Charger Brick PSU (NOT 2-Prong Connector)