1.PFC Device (Power Factor Correction)2.Catch-return Safety System: During the door motion if there is a person or object block the travel line, the door will return.3.A wide range of AC Voltage Input (AC100AC240V )4.Power saving, Quietest, versatile, resistant high heat and cold5.Safety Certificate: CE6.Factory Certificate: URS ISO 90017.Excellent Quality & High-performanceEN16005: The latest regulation for the safety functions of automatic door in Europe.