Philips Respironics DreamStation AC Power Supply – 80W | 12V 6.67A AC DC Adapter Charger for Philips Respironics DreamStation Machines | This 80 Watt External AC Power Supply is for use with all Philips Respironics DreamStation series CPAP & BiPAP machines. The universal power supply is rated from 100-240 V, 50-60 Hz and can be used without a voltage converter in most countries worldwide.