Item Type: LED Switching Power Supply <br>Type: AC or DC power supply <br>Modulation Method: Pulse width modulation (PWM) type <br>Transistor Connection Mode: Half bridge <br>Input Voltage: AC175-250 (V) <br>Working Frequency: 50/60 (Hz) <br>Output Power: 300 (W) <br>Work Efficiency: 90 (%) <br>Output Ripple Noise: 50-60 <br>Output Voltage Accuracy: ±0.5 (%) <br>Voltage Adjustment Rate: ±1 (%) <br>Load Regulation Rate: 2 (%) <br>Working Temperature: -40~+70 (℃) <br>Power Phase Number: Single phase <br>Installation Method: Screw fixed <br>Cooling Fan Type: Self cooling type <br>Size: Approx. 208 x 63 x 29mm / 8.2 x 2.5 x 1.1in<br>1、OVER VOLTAGE, LOAD, CURRENT, SHORT CIRCUIT PROTECTION: Providing multiple intelligent protection, contain over voltage, overload, over current, short circuit protection <br>2、THICKENED AND REINFORCED ALUMINUM ALLOY SHELL: Aluminum alloy shell is durable, resistant to oxidation, corrosion and rust, thickened and reinforced <br>3、CELLULAR HOLE HEAT DISSIPATION: Adopt cellular hole heat dissipation, quiet and energy saving. The cooling fan type is self cooling <br>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. <br>5、PULSE WIDTH MODULATION: Modulation method adopts pulse width modulation(PWM), half bridge transistor connection, single phase power supply, very stableThe output parameter is 300W with different voltage, please check carefully before buying.1 x LED Switching Power Supply<br>