UpBright New Global 19V AC/DC Adapter Replacement for Inogen One Mobile Oxygen Concentrator G1 G2 & G3 Series InogenOne 19VDC Power Supply Cord Cable PS Charger Mains PSU World Wide Input Voltage 100-240VAC 50/60Hz. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection). Tested Units. In Great Working Condition. UpBright 30 days money back guarantee. 1 full year service warranty. UpBright NEW Global 19V AC / DC Adapter Replacement For Inogen One Mobile Oxygen Concentrator G1 G2 & G3 Series InogenOne 19VDC Power Supply Cord Cable PS Charger Mains PSU (Note: This replacement AC adapter has ONLY home AC input. Without car DC lighter plug input. Please Check For Compatibility With Your Unit. Thanks.)