1、OVER VOLTAGE, LOAD, CURRENT, SHORT CIRCUIT PROTECTION: Providing multiple intelligent protection, contain over voltage, overload, over current, short circuit protection 2、THICKENED AND REINFORCED ALUMINUM ALLOY SHELL: Aluminum alloy shell is durable, resistant to oxidation, corrosion and rust, thickened and reinforced 3、CELLULAR HOLE HEAT DISSIPATION: Adopt cellular hole heat dissipation, quiet and energy saving. The cooling fan type is self cooling 4、MAGNETIC LAMP SWITCHING POWER SUPPLY: Magnetic lamp switching power supply is suitable for high end places such as hotel lobbies, KTV, leisure centers, meeting rooms, etc. 5、PULSE WIDTH MODULATION: Modulation method adopts pulse width modulation(PWM), half bridge transistor connection, single phase power supply, very stable 1 x LED Switching Power Supply Item Type: LED Switching Power SupplyType: AC or DC power supplyModulation Method: Pulse width modulation (PWM) typeTransistor Connection Mode: Half bridgeInput Voltage: AC175-250 (V)Working Frequency: 50/60 (Hz)Output Power: 300 (W)Work Efficiency: 90 (%)Output Ripple Noise: 50-60Output Voltage Accuracy: ± 0.5 (%)Voltage Adjustment Rate: ±1 (%)Load Regulation Rate: 2 (%)Working Temperature: -40~+70 (℃)Power Phase Number: Single phaseInstallation Method: Screw fixedCooling Fan Type: Self cooling typeSize: Approx. 208 x 63 x 29mm / 8.2 x 2.5 x 1.1in