MTYTOT 4.2V 2a Power Supply 4.2Volt ac/dc Adapter Wall Charger Switching Transformer ac Adapter 2.5mm X 5.5mm US Plug 4.6FT Cable Cord for Hoover Board led Strip Lights

Parameter Item 1)Input: 100-240 V AC, 50/60 Hz 2)Output current:2 A (2000mA) 3)Output Voltage:DC 4.2V±0.2V Constant Voltage, Constant Current 4)Cord Length: about 150cm (about4.6ft) 5)Power Polarity: Inside (+), Outside (-) 6)DC plug connector size: 5.5mmx2.5mm; 5.5mmx2.1mm compatible 7)Voltage accuracy: ±5% (no load) 8)Package included :1pcs power adapter Charging process LED indicator changes: (1) No-load status LED is green; (2) Charging, the first phase of constant current charging, LED indicator is red. Charge to the rated voltage into the second phase of constant voltage charging, the current slowly decreases. (3) When the battery power reaches 90-95%, LED lights turn green. At this point the charger will continue to charge with a small current until it is full. Kindly note: (1)Please check the DC socket type, Power consumption(must not exceed the Max output of the adapter), polarity of the device before ordering, or it may cause problem or damage the device. (2) This product has many kinds of protection functions, enter the protection mode, LED lights will flashing red light. When this happens, unplug the adapter immediately and check if the circuit is short-circuited, if the electrical power exceeds the rated power of the adapter, etc. (3) Please don't use it outdoor. It is not waterproof. (4) If there is any problem about the power supply, please feel free to contact us by email. We will solve all the problems for you in 24 hours.