QC3.0+QC3.0: the input is: DC12v-24V, and the output is: 36W(TOTAL).fast car charger. Safe & Reliable: Certified RoHS, CE,UL , Protect devices from overheated and over-currents, overcharging, and short circuits, Charging will automatically stop when the battery is full. EFFICIENT QUICK CHARGING: 36W fast USB car charger can fast charge all prevailing phones at the same time. Quick Charge 3.0 port, charges devices from 0% to 80% within 35 minutes, compatible with S8/9/10/20/21/Plus, Note 8/9/10/20/21/Plus, etc. MINIMUM SIZE, MAXIMUM SPEED PHONE CAR CHARGER: With a tiny thumb-sized body, Wyssay cigarette lighter usb charger made with Zinc alloy material,QC 3.0 quick car USB charger fast charge perfectly blends with most car charger cigarette lighter and sits comfortably with the edge of the outlet. Our smallest car USB charger yet; it´s portable and you can take everywhere. DUAL PORTS QC3.0 FAST CHARGING: Dual ports pump out 36W total. The USB car charger adapter can fast charge two devices simultaneously at QC3.0 speed and charge From 0 to 70% in 30 minutes; Provides 4x faster charging speed to compatible devices. Please note: iphone don't support QC3.0.