Features:
Brand new and high quantity.
Design in ultra mini size, light weight and portable.
Ultra-high-end switch with LED indicator light
CE certified quality, made of environmentally friendly anti-retardant materials
The switch easy to control and with the light to remind people when the switch on.
Voltage display can timely display the battery voltage whether in the normal use range or not and with digital display to let you know the battery's voltage accurate data.
Allow any automotive with a cigarette plug attachment to be used with these surface mount cigarette sockets.
Specification: 
Material :ABS,Metal
Suitable: Universal Car ,Boat,Truck
Color: Blue/Green/Red 
USB Charger:Operating voltage: 12V,Interface: 2 USB,Output: DC 5V/2.1A 5V/1A
Voltage Meter:Operating Range: DC 6-28V,Display: Digital display
Cigarette Lighter Socket:Operating Voltage: DC 12V
Switch:Indicator Light
Package Included:
1 x 4 in 1 LED Dual USB Car Charger Voltmeter Switch 12V Socket
8 x Insulated Terminals
4 x Screws
About 4 IN 1 Switch Panel B:
Specification: 
Material :ABS
Suitable: Universal Car ,Boat,Truck
Color: Blue/Green/Red 
Weight: 152g 
USB socket output: DC 5V / 4.2A
Power outlet: DC 12V
Voltmeter display range: 6 - 30V.
Size:See the picture
Package Included:
1x Switch Panel Combination
Do dropshipping ?
Yes,we do.If you have any question please contact us.
 Production Material Safety?
All products are 100% brand new, workable and checked carefully before sending out.
 When is the parcel sent?
We will send out order within 5 workdays. The delivery time will vary according to different countries and will be affected by weather, public holidays and so on. If order doesn't received in declare time, please contact us.
 How about refund?
Full refund if the item does not match the description or defective.
 If there are any other problems , Click on Help
https://helppage.aliexpress.com/buyercenter/index.htm#centerhttps://helppage.aliexpress.com/buyercenter/index.htm#center
Do dropshipping ?
Yes,we do.If you have any question please contact us.
 Production Material Safety?
All products are 100% brand new, workable and checked carefully before sending out.
 When is the parcel sent?
We will send out order within 5 workdays. The delivery time will vary according to different countries and will be affected by weather, public holidays and so on. If order doesn't received in declare time, please contact us.
 How about refund?
Full refund if the item does not match the description or defective.
 If there are any other problems , Click on Help
https://helppage.aliexpress.com/buyercenter/index.htm#centerhttps://helppage.aliexpress.com/buyercenter/index.htm#center