Standard: Qi 1.12 Output: DC 5V 1A Size: 69*69*2.2 mm. ( only 2.2mm thickness) Charging temperature rise: 10℃. ( about half of all others competitors ) Power source: DC 12V adaptor. ( inside the package and pass UL/GS) Protection: IP67 Power calbe: 1.8m, UL-V0, 5Kg pulling force and 3k times bending. Best choice for on desk/table usage like in the office, home, hotel, etc.