Input: 110V/220V AC; Output: DC 24V 20A max. The output voltage can be adjusted by 10%. Three sets of output channels. Protection function: overload protection, overvoltage protection, short circuit protection, this protection will protect your load well. NOTE: Please select the input voltage 110V/220V according to your local voltage before use. To prevent damage, the power switch is on the right side of the item. It comes with a built-in fan and many holes in the metal casing, which makes heat dissipation more efficient. Switching power supplies are widely used in industrial automation control, LED lighting, industrial equipment, communication equipment, electrical equipment, air purifiers, electronic refrigerators, LCD monitors, communication equipment, audio-visual products, security monitoring, computer cases, digital products and equipment and other fields. It comes with a built-in fan and many holes in the metal casing, which makes heat dissipation more efficient. Metal casing, good heat dissipation, built-in indicator light. 100% full load burn-in test Constant voltage LED power supply, AC 170-260V input, DC 12V, 50/60Hz output. (Not compatible with CONSTANT CURRENT LED lights). Advanced circuit board provides over-pressure, over-current, overload and short circuit protection. Easy to install. Static power consumption with high power factor and low calorific value. Compact design provides application versatility for LED strips, MR16 lamps and other lighting needs. Maximize performance and lifespan by keeping the load below 80% of the PSU capacity. LED lights light up immediately after power is turned on, no waiting, no flicker, no interference, no 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.