Features Multiple Intelligent Protection: Provides over voltage, overload, over current, and short circuit protection for enhanced safety and reliability. Aluminum Alloy Shell: , resistant to oxidation, corrosion, and rust, with a thickened and reinforced design for long-lasting performance. Quiet and Energy Saving: Features cellular hole heat dissipation for quiet and energy-efficient , with a self-cooling cooling fan type for effective cooling. For High End Places: Designed for high end places such as hotel lobbies, KTV, leisure centers, and meeting rooms, offering practical and professional lighting solutions. PWM Function: Utilizes pulse width modulation (PWM) and half bridge transistor connection for efficient single phase power supply, ensuring reliable performance. Features: 1、MULTIPLE INTELLIGENT PROTECTION: LED driver provide multiple intelligent protection, contain over voltage, overload, over current, short circuit protection 2、ALUMINUM ALLOY SHELL: Aluminum alloy shell is , resistant to oxidation, corrosion and rust, thickened and reinforced 3、QUIET AND ENERGY SAVING: Cellular hole heat dissipation, quiet and energy saving. The cooling fan type is self cooling, with good effect 4、FOR HIGH END PLACES: Magnetic lamp switching power supply is suitable for high end places such as hotel lobbies, KTV, leisure centers, meeting rooms, etc., very practical 5、PWM FUNCTION: Modulation method adopts pulse width modulation(PWM), half bridge transistor connection, single phase power supply Specification: Item Type: LED Switching Power Supply Type: AC or DC power supply Modulation Method: Pulse width modulation (PWM) type Transistor Connection Mode: Half bridge Input Voltage: AC175-250 (V) Working Frequency: 50/60 (Hz) Output Power: 400 (W) Work Efficiency: 90 (%) Output Ripple Noise: 50-60 Output Voltage Accuracy: ±0.5 (%) Voltage Adjustment Rate: ±1 (%) Load Regulation Rate: 2 (%) Working Temperature: -40~+70 (℃) Power Phase Number: Single phase Installation Method: Screw fixed Cooling Fan Type: Self cooling type Size: Approx. 245 x 63 x 29mm / 9.6 x 2.5 x 1.1in Package List: 1 x LED Switching Power Supply Note: The output parameter is 400W with different voltage, please check carefully before buying. Package List 1 x LED Switching Power Supply