1. Input: AC 100V-240V 50/60Hz; Output: DC 5V 4A 20W MAX; DC plug size is 5.5mm x 2.5mm. Compatible with 5.5mmx2.1mm. Polarity is inside positive "+", outside negative"-", Power cord length: about4.6ft.
2. 5Volt 4A 3A 2A 1A Switching Power Supply, DC 20W Max, Power supply works for various of devices which ask for a less than 5V 44A 20W power adaptor, Such as 5V 4000mA, 3500mA, 3000mA, 2500mA, 2000mA, 1500mA, 10000mA, 500mA, 450mA, 400mA, 300mA,
3. The products adopt the industry's top materials and processes, flame retardant shell resistant to high temperature of 1382℉, premium-quality components and safe&reliable power cord. Certified by FCC, CE, RoHS, CCC, Overcurrent protection, overvoltage protection and overload protection, short-circuit protection ensure the stability and smoothness. Gives a safe charging. transformer charger
4. Widely used to drive 5V LED light strings, USB-HUB, Bluetooth speaker, wireless router, mini fountain, wifi IP home camera and other 5V devices less than 20W.
5. Buy with confidence and 24-hours online service, 45 days money back guarantee, lifetime technical support. Please feel free to contact with us for any questions.