Features:
1. This is a 4.8A intelligent fast charger, with voltage display and high voltage warning, it can display charging rate, there is a switch that can freely switch the mode of display and turn on/off the power.
2. Press the switch lightly to turn on the power, it can display the real-time voltage after the full-screen lights up for 2 seconds, and then press the button once again to switch to the red power indicator. Both display modes can be freely switched by the button. Long press the switch for two seconds to turn off the power of the device. After turning off the power, it means that the device has cut off the power input and then achieve the the effect of saving electricity.
3. When the input voltage exceeds 14.6V, the red indicator light is on (warning function, it indicates that the input voltage is too high.)
4. When the power is turned on and the USB charging is performed, the flowing light of color screen indicates that it is in charging; it will reflect the speed of charging according to the flowing rate of color screen. When the mobile phone is fully charged, it will light up on the full screen. Two minutes later, It will display the real-time voltage again. The display mode can be switched to a separate red indicator light by pressing the switch lightly. Long press the switch for two seconds to turn off the power of the device.
5. Multi-purposes: supply power for cellphone, tablet PC, GPS and other USB-devices. Wide Application: cars, motorcycles, ATVs, SUVs, UTVs, Boats, etc.

Specification:
Product material: ABS
Product Color: Black
input Voltage: DC 12V - 24V
Output: 5V 4.8A
Size: about 50x36.8mm

Package Contents:
 1 X  Car Dual USB Charger with LED Voltmeter ON OFF Switch

Note:
1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2. Please allow slight manual measurement deviation for the data.