4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug (Pack of 2)

The information below is per-pack only.
Input: 100-240 V AC 50/60 Hz;
Output: DC 4.2V 1A (1000mA) MAX.
DC plug size: 5.5 mm x 2.5 mm; the inside diameter is positive "+", the outer diameter is negative "-". Please confirm whether the DC interface of this adapter matches the interface of your device before purchasing. This product has many kinds of protection functions, with over-current protection, over-voltage protection, overcharge protection, and short circuit protection. When it enters the protection mode, the LED light will flash red. 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. Built in high quality electronic components which improve the longer service life and make the adapter more reliable. The outer shell of the adapter is made of fire-resistant materials, PC + ABS, able to withstand high temperatures. The adapter is used for aircraft model aircraft, remote control airplanes, electric cars and other toy model aircraft / Less than 1A