Product Features: 1. The switching power supply adopts pulse width modulation (PWM) switching technology design, adopts low power circuit design to ensure the stability and high efficiency of the power supply. The input voltage range is wide. 2. Input voltage 220V range: 175V~265V and 110V or 220 switch 3. Efficiency is up to 83%. 4. This switch power supply has high temperature protection, over voltage protection, short circuit protection, overload protection and other functions. 5. The product allows storage temperature: -45~+85 degrees Celsius. 6. The product looks beautiful, small in size, light in weight, and has LED indicators. 7. Reliability: Mean time between failures (MTBF) ≥ 100,000 hours