[UPGRADED VERSION WITH ON/OFF SWITCH]12v usb outlet adopted humanized design with a contact switch, solving the old version issue which always "On" then waste the power even reduce the life of car battery. Now you can control the ON/OFF anytime for save power and prevent the battery being drained when leave unused.[UPGRADED VERSION DUAL QUICK CHARGE 3.0 USB OUTLET]Support dual Quich Charge 3.0, you can charge two compatible devices simultaneously up to 4X faster than conventional charging, From 0 to 55% in 35 minutes; Backward-compatible with QC 2.0 &1.0, and deliver the fastest possible charge to all non-quick charge device.[WIDE COMPATIBILITY FOR DC 12/24V CAR]Compatible for DC 12/24V car, boat, marine, motorcycle, ATV, RV etc. This USB Socket is suitable for charging Galaxy S9/ S9+/ S8/ S8+/ S7, 8/ 8 Plus/ X/ 7/ 6S, Note 9/ , iPad, android tablets, power banks, video games controllers, sports watch etc.[SMART IC CHIP SAFE PROTECTION & HIGH QUALITY MATERIAL]12V USB Outlet adopted smart IC chip which can defect your devices intelligently and provides most suitable current for them, come with Over-load, Over-current and Short Circuit Protection to ensure charging safety, guard the safety of your devices.[HUMANIZED DESIGN & ACCESSORIES ]Digital LED Display for more convenient to check the car charger connection status and easy to use at night or in the dark. Exclusively provide a 1.1inch Stainless Steel Puncher, easily drill a 1.1inch hole for convenient to install the car usb socket.Input Voltage: DC 12 V-24 VMAX Power: 36 WOutput of each usb port : DC 3.6-6.5V/3A, 6.5V-9V/2A, 9V-12V/1.5AWaterproof Rating: IP 66colour:BlackMaterial:Copper+ABSsize:Cable length 60CMPackage Contents:2 x Car 2 x Wire with 10A fuse2 x 1.1 inch (about 2.8 cm) stainless steel hole punchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.