I plug kids dvds and my phone to it and it works great. Even though it says 3 socket it actually has only 2, 3 rd middle one is an indicator of voltage. I am fine with it but it shouldn't be advertised as 3 socket for which some people rated this item very low. I have it plugged between sits in underarm compartment which is convinient. I like the fact that I can rotate it to 90 degree, this way it takes less space.
From the sellers description:
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• 3 CIGARETTE LIGHTER SOCKETS + 2 USB CHARGING PORTS 12V/24V 120W cigarette lighter socket with dual usb charging port to convert the cigarette lighter into multi-functional power adapter to support charging for multiple device at the same time
• INDEPENT ON/OFF SWITCH with LED INDICATOR Each cigarette lighter matched with its individual switch for safe operation
• REAL TIME VOLTAGE MONITORING Monitor battery voltage in real time to protect the battery, prolong the service life of battery
• 90 DEGREES ROTATING There is angle positioning device on this cigarette lighter splitter, can be adjusted arbitrary, its max adjustable angle is 90 degree
• WIDELY APPLICATION Universal for 12-24V vehicles, adapt to main stream vehicle stypes such as cars, SUVs, trucks, off-road vehicles
https://www.amazon.com/gp/product/B07CM4D7KG/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1