Description: brand new and high quality Quick Charge 3.0: Charge compatible devices up to 4 times faster than conventional charging Universal Compatibility: Compatible with all USB-powered devices including Quick Charge 3.0 2.0 Smart phones & tablets Universal for boats, ATVs, UTVs, Golf carts, tractors or anywhere else can be thought of. Material: Plastic+Metal Product Color: Black LED Indicator light color: Red/Blue/Green (Optional) Over-heated,over-current,over-charging protection, charging will be automatically stop when battery is full, easy to use and install Input Voltage: DC 12V - 24V USB Output : DC 5V 3.6A, 9V 2.1A, 12V 1.5A Size: 53.5cm Voltmeter Measure Voltage: DC 8V-30V QC 3.0 USB socket charger with voltmeter, real-time show the car battery voltage. Support to install in 12V-24V motorbike, car, boat, motor, riding mower, SUV, ATV, tractor or car. widely used with electric equipment for power supply: mobile phone, tablet, GPS, camera, mp3, etc. IP66 Waterproof, Full Competence for Outdoor Usage Package includes: 1 X Car QC 3.0 USB Charger Voltmeter 2 X Terminals (No retail package)