Features: 1. Universal AC input /Full range 2. Protections: Short circuit/Overload /Over voltage /Over temperature 3. Cooling by free air convection 4. LED indicator for power on 5. 100% full load burn-in test 6. No load power consumption<0.5W 7. All using 105C long life electrolytic capacitors 8. Withstand 300VAC surge input for 5 second 9. High operating temperature up to 70°C 10. Withstand 5G vibration test 11. High efficiency, long life and high reliability