Aquarius Desktop Charging Stand with Led Indicator, BlackWe strongly recommend using a 2A adapter for the best result of WIRELESS charging, NOT using power source from the computer, as the output from the computer is only 500-800mA. Advanced 2-Coils Charging Technology make the wireless fast charging possible. Intelligent LED indicator shows the status of safety charging. The wireless charging stand will turn into blue when it connects to the power and will turn into green and stays when the phone fully charged.Easy to Use: Just centre your phone on the charging station after the station is powered, then it begins to charge. Simple and convenient. Please make sure your phone is put in the magnetic inductive centre while charging wirelessly. Fast Wireless charging: Up to 5V-2A input and 9V-1.2A output, this wireless charger has a maximum output of 10W, which is 2 times faster than standard wireless charging mat 5W, it can charge your devices in high efficiency. (Recommend connect with 5V /2A wall charger, so it will charge at lightning speed). Specification : Input: DC 5V, 2A DC 9V,1.67ACharging Efficiency: more than 75%Charging Distance: 3-10MMFrequency: 110-205KHzWireless Charging Power: 10W