ITEM NAME:7.5W S9Fast Charging Wireless Charger PCBA Circuit Board With Dual 2Coil GreenBX Description of functional parameters: 1. Input Voltage: DC9V1.5~2A, beyond this range voltage alarm and stop charging 2. Output voltage: 9V + 0.1V. 3. Charging current: 1100 mAh 4. Charging power: up to 10W compatible 7.5W compatible 5W 5. Conversion efficiency: greater than 73% 6. Transmission Distance: Maximum 10mm, Recommended Transmit-receive Distance 2mm~4mm 7. Standby power consumption: average power consumption is less than 50 mW 8. Over-temperature protection: When the charging temperature is higher than 60 degrees, automatically stop charging for 1 minute, and then recharge after the temperature drops, charging temperature is 40 degrees. 9. Over-current protection: When the output current is greater than 2A, the charging will stop automatically to prevent damage to the charger. 10. Implementation Standard: Qi Wireless Charging Standard 11. Product Certification: CE/FCC, Compatible with QI Certification Standard 12. Foreign body detection with FOD.Charging power: up to 10W compatible 7.5W compatible 5W. Charging current: 1100 mAh. Standby power consumption: average power consumption is less than 50 mW.