CHOETECH T539-S 10W Fast Wireless Charger 1) Input: 5V/2A 9V/1.8A 2) Output: 10W(Compatible with 7.5W and 5W) 3) Interface: Micro USB 4) Product Size: diameter 94.5mm*8.5mm 5) Material: Zinc-alloy + PU surface 6) Accessories: 1.2M A to Micro B cord 7) Certification: CE, RoHS, FCC, ETL, RCM 8) Standby Power Consumption: 0.05W 9) Conversion efficiency: 72%(Max)