Features: 12-24V, suitable for car, SUV, RV, truck and more. Dual USB fast charging socket, suitable for smartphone, tablets. Type A USB port for QC 3.0 for most cellphone in the market. This product combines 18W for QC 3.0 with the fast charging solution 45W PD interface two-in-one. PA66 flame retardant upgraded material, fast heat dissipation, strong heat resistant, and safer charging. Specifications: Material: Plastics Length: Approx. 49.45mm/1.95in Dia: Approx. 36.6mm/1.44in Product light: blue + amber (Note: the backlights is blue in uncharged and QC3.0 charging modes, and the LED backlights is amber in PD fast charging mode.) Hole Size: 29.30MM Working Voltage: 12/24V Product Power: 45W Max Product output: USB Port: 18W QC3.0 Fast Charge Type C PD Interface: 5 Modes 5V/3.0A 9V/3.0A 12V/3.0A 15V/2.25A 20V/2.25A (Note: This mode needs to be connected to the power supply with a voltage greater than 20V) Wiring Method: There are positive and negative signs at the bottom, "+" is connected to the positive electrode, "-" is connected to the negative electrode Scope of application: suitable for 12-24V voltage trucks, RV, coaches, boats, motorcycles, etc. Package Includes: 1x Charger Socket note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.