1. Universal AC input / Full range
2. Protections: Short circuit / Overload / Over voltage
3. Battery low and battery polarity protection
4. Cooling by free air convection
5. 100% full load burn-in test
6. Fixed switching frequency at PFC 67KHz, PWM 134KHz
7. 2 years warranty
Other data sheets within the file : AD-155A, AD155B, AD-155C