It is a Car Charging Module/20W Adapter, Input voltage: DC 12 / 24V, Output voltage: DC 3.7~12V (Adaptive), Output current: 4.2A, Suitable for USB DGP applying 1.2V / 2.7V on D+ and D- lines,  Apple devices, Samsung devices, Car audio, radio, monitoring walkie-talkie, LED display, solar energy generation, photovoltaic panels, industrial equipments and etc.

• Input voltage: DC 12 / 24V
• Output voltage: DC 3.7~12V (Adaptive)
• Output current: 4.2A
• Output power: 20W
• Ripple wave: smaller than 150mV
• Operating temperature: -20～+65℃
• Voltage regulation: 1%
• Load regulation: 2%

• 1. OCP: over current protection
• 2. Overvoltage protection
• 3. Short-circuit protection
• 4. Reverse protection
• 5. OTP: over temperature protection

• 1. USB DGP applying 1.2V / 2.7V on D+ and D- lines
• 2. Apple devices
• 3. Samsung devices
• 4. Car audio, radio, monitoring walkie-talkie, LED display, solar energy generation, photovoltaic panels, industrial equipments and etc.

• 1 x DC Quick-charge Converter ( Charging Module/Car Adapter )