1、 Product features:     1. Shell material: PC / ABS + PC, high temperature resistance 120 ℃, fire rating: UL 94V-0;     2. Constant voltage working mode: ± 5%;     3. Brand IC scheme design, stable and reliable performance and low loss;     4. Environmental protection complies with ROHS 2.0;  2、 Electrical characteristics:     1. Input voltage / frequency: AC 100 ~ 240V (90 ~ 264v), 50 / 60Hz (47 / 63Hz)     2. Output power: 24W     3. Output voltage: DC 5V ~ 24V     4. Output current: 0.1A ~ 3A     5. Load adjustment range: ± 5%     6. Energy efficiency: meet class VI     7. Withstand voltage test: AC 3000V / min 5mA / 3S     8. Insulation impedance: DC 500V 100m Ω

3、 Protection function:     1. Overcurrent protection: 120%     2. Overvoltage protection: 120%     3. Short circuit protection: automatic recovery4、 Reliability test:     1. Aging test: the product shall be aged for at least 2 hours under the environment of 40 ℃± 5 ℃ and 100% rated load;     2. MTBF estimation: at least 50000 hours, under 25 ℃ environment and input and full load conditions;     3. Drop test: 1m high, drop onto the hardwood with thickness of 30mm, and the hardwood shall be placed on the cement base or equivalent inelastic ground;5、 Environmental requirements:     1. Working temperature: 0 ~ 40 ℃     2. Storage temperature: - 20 ~ 85 ℃     3. Working humidity: 5 ~ 95% RH6、 Safety certification:     Japanese PSE, American UL, Chinese CCC, Korean KC; European CE, CB, GS,