Input: 110V/220V AC; Output: DC 24V 20A max. Output voltage adjustable by 10%. Features three sets of output channels. Protection: Overload protection, overvoltage protection, and short circuit protection safeguard your connected devices. Important: Select the correct input voltage (110V/220V) according to your local voltage before use. A switch on the right side of the item allows you to select the voltage. Efficient Cooling: Equipped with a built-in fan and numerous ventilation holes in the metal casing for superior heat dissipation. Wide Application: Ideal for industrial automation control, LED lighting, industrial equipment, communication equipment, electrical equipment, air purifiers, electronic refrigerators, LCD displays, audio-visual products, security monitoring, computer cases, digital products, and more. Additional Features: Metal casing for excellent heat dissipation, built-in indicator light, and 100% full load burn-in test. Constant Voltage LED Power Supply: AC 170-260V input, DC 12V output at 50/60Hz. (Not compatible with CONSTANT CURRENT LED lights). Advanced circuit board provides overpressure, overcurrent, overload, and short circuit protection. Easy to install with high power factor and low heat generation. Compact design offers application versatility for LED strips, MR16 lamps, and other lighting needs. Maximize performance and lifespan by keeping the load under 80% of the PSU capacity. LEDs light up instantly with no waiting, flickering, interference, or noise. AC input: 170-260 volts, DC output: 12 volts, 150 watts or 300 watts, 6.25 amps or 12.5 amps. This 12V LED transformer driver is suitable for constant voltage LED lights such as LED strips, MR16, G4, GU5.3 or CCTV.