ITEM NAME:12V-24V Car Cigarette Lighter Socket + Dual USB Charger + Voltmeter Panel l- 12V-24V Car Cigarette Lighter Socket + Dual USB Charger + Voltmeter Panel l- Specification: Brand new Material: metal + ABS Power Consumption: DC 12V-24V USB Output Voltage: 5V USB1: 5V 3.1A, 9V/2A, 12V/1.5A USB2: 5V 3.1A, 9V/2A, 12V/1.5A Voltmeter Can Measure Voltage: 6-32V MAX. Power: When installed in a 12V device, the maximum power is 120W; When installed in a 24V device, the maximum power is 250W. Fast charge agreement: DCP (Apple Samsung), USB-BC12,Qualcomm QC2.0/QC3.0, Huawei SCP, FCP and other fast charging protocols. Feature: Dual quick charge 3.0 USB ports. LED voltage display that can shows the voltage status of car battery in time. Monitors the health of your vehicle, boat, ship, motorcycle, etc. High temperature resistant, low temperature resistant, has flame retardant properties. Overload, overheat, overvoltage, undervoltage and short-circuit protection. Appliances in cars, motorcycles, bus buses, ships, motor homes, yachts, trailers, etc. Fine workmanship and good performance. Easy to use. Long service life. Package Included: 1 x 3 in 1 Car Cigarette Lighter Adapter 4 x Screws Note: The voltage ONLY can be read after connecting to power and switch on the button. The voltage ONLY can be shown when connecting the car charger to power and switching on the button. Please allow 0-1cm size errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Item Show.Power: When installed in a 12V device, the maximum power is 120W; When installed in a 24V device, the maximum power is 250W. 1 x 3 in 1 Car Cigarette Lighter Adapter.