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Fast charging: the dual USB charging port is up to 4x faster than conventional chargers and has two fast charging ports with 18 W to 3 A QC3.0. Suitable for all standard USB devices. Thanks to the integrated Smart IC technology, two USB charging ports simultaneously charge at optimal speed. The USB car charger is made of aluminium alloy with better heat dissipation 【Cigarette Lighter Socket】: Total power up to 120W (12V) / 250W (24V). Enough for daily use, fits perfectly for compatible devices such as dash cam, GPS, vacuum cleaner, air purifier, etc. 【Fast Charging】: Dual QC 3.0 USB ports whose maximum single output is 18W. The built-in Qualcomm Smart Chip intelligently detects your devices while simultaneously charging two devices at optimal performance. Charge compatible devices up to four times faster than conventional charges, twice as fast as Quick Charge 1.0 and 38% more efficient than QC 2.0. 【Compatibility】: This QC 3.0 USB charging socket is suitable for 12-24V car, boat, marine, motorcycle, ATV, RV etc. Suitable for charging mobile phone, GPS, digital camera, PDA and other USB accessories, backwards compatible with QC 2.0.1.0, provides standard charging for non-fast chargers. Certified safe guarantee: certified by CE certified with overcharging, over-current, overheating and short circuit protection to ensure safety. At the same time, the integrated Smart IC ensures that the circuit does not burn out if wiring is incorrect. › See more product details; Product description 2 hole design. It integrates the socket QC3.0 USB interface on one panel, it has strong practicality, a good solution for vehicle control and device charging and device charging. Easy installation, installation is very easy within 20 minutes: \; Product description 2 hole design. It integrates the socket QC3.0 USB interface on one panel, it has strong practicality, a good solution for vehicle control and device charging and device charging. Easy installation, installation is very easy within 20 minutes: \; 2 hole design. It integrates the socket QC3.0 USB interface on one panel, it has strong practicality, a good solution for vehicle control and device charging and device charging. Easy installation, installation is very easy within 20 minutes: \