Qi Wireless Charging FAQ 1. Does this support fast charging? No, the wireless charger(10W) support fast charging, but the receiver output is 5W(Max). so NOT fast charging. 2. Does it heat up when wireless charging? Yes, it will produce a little heat due to energy conversion, but not very hot. this is a normal physical phenomenon. 3. Can I use case after installing receiver? Yes, please use PC or TPU case, the receiver will be hidden after using case, please view the video about installation. 4. What are the factors that affect the charging speed? Many, such as: Wireless charger, Receiver, Wall adapter, Cable, Phone Battery Capacity, Poor connect of phone interface, etc. Please use high quality of the above products. 5. What are the advantages and disadvantages? Advantages: Wire free, Put and Charging, enjoy wireless charging, very convenient. Disadvantages: relatively slower than wired charging and a little heat when charging. Compatible with: -Samsung Galaxy A02S -Samsung Galaxy A03S -Samsung Galaxy A04S -Samsung Galaxy A05S -Samsung Galaxy A20S -Samsung Galaxy A21S -Samsung Galaxy A30S -Samsung Galaxy A40S -Samsung Galaxy A50S -Samsung Galaxy A70S -Samsung Galaxy A52S Specifications: 1.Wireless Charger: Input:5V/2A; 9V/2A Transmission distance Material: Aluminum Alloy+Acrylic Color: Black 2.Charging Receiver: Output:5V/1A(Max) Charge efficiency: > 70% Interface: Type-C Standard: QI standard Wireless Charger