eatures: 1.Wide voltage input range: support global voltage AC100-264V input, no need to worry about regional voltage differences, applicable to a variety of power supply environment 2.Efficient and stable conversion: using high-quality components and advanced switching power supply technology to achieve efficient energy conversion, output DC3.3V, 5V, 12V, 24V and other standard voltages to meet the needs of different equipment. 3. Low power consumption and environmental protection: low heat generation during the working period, high energy efficiency, reduce operating costs. 4. Products with overload, short-circuit, over-temperature protection and other functions, the use of safe and secure Parameter: Input voltage range: AC100~264V Input current: 0.2A (average current 0.03~0.1A) Frequency range: 47~63Hz Efficiency: 75%~76 Output voltage: 3.3V/5V/12V/24V Rated current: 800mA/400mA/200mA Output Accuracy: ±1% Voltage Adjustment Rate:±1% Load adjustment rate: ± 1% Rated power: 5W Output adjustable range: non-adjustable Leakage current: 2mA/220VAC Over power protection: 150~170% of rated power, fault removal automatic recovery Over-voltage protection: VH1: 50%DC Short-circuit protection: power intermittent playing apart, exclude short-circuit power recovery Warm tips: 1. All parameters in the rated voltage 220VAC input, rated load environment 25 & 8451;, humidity 70% of the conditions of measurement 2. Accuracy: including setting error, voltage adjustment rate, load adjustment rate. 3. Ripple test: connect the power supply and load with 30cm long stranded wire, and 0.1uF and 47uF capacitors at the load side, measured by 20MH oscilloscope at the load side. 4. Voltage regulation rate: under rated load conditions, the input voltage is measured from low to high. 5. Load adjustment ratio: measured from 0% load to 100% load variation of the output under test. 6. Each channel can output the maximum current, but the sum of the total load can not exceed the maximum output power Package include: Switching power supply module *1