Features 1.Wide Voltage Design: 12‑24V wide voltage design, common use for cars and trucks, suitable for all kinds of standard car plug adaptor. 2.Super Strong Support: Dual USB ports meet the needs of all electronic devices at the same time, Suitable for iOS, mobile phones, digital cameras, and etc. 3.Streamline Modelling: With switch and waterproof cap, the design is small and exquisite, easy to install, and perfect fit for your car. 4.Five Intelligent Protection: Overcurrent protection, voltage regulator protection, overcharge protection, overdischarge protection, and short circuit protection. 5.Super Brightness LED Light: Three digit tube display, constantly monitor the battery voltage, make the battery work under normal voltage, extend and protect the battery and engine life. Specification Features: Wide Voltage Design: 12-24V wide voltage design, common use for cars and trucks, suitable for all kinds of standard car plug adaptor. Super Strong Support: Dual USB ports meet the needs of all electronic devices at the same time, Suitable for iOS, mobile phones, digital cameras, and etc. Streamline Modelling: With switch and waterproof cap, the design is small and exquisite, easy to install, and perfect fit for your car. Five Intelligent Protection: Overcurrent protection, voltage regulator protection, overcharge protection, overdischarge protection, and short circuit protection. Super Brightness LED Light: Three digit tube display, constantly monitor the battery voltage, make the battery work under normal voltage, extend and protect the battery and engine life. Specification: Material: ABS Plastic Light Color: Red, Blue, Green (optional) USB output: DC 5V/4.2A Power socket: DC 12V Voltmeter display range: 0-24V Toggle switch: 20A 12V DC Package List: 1 * 12V socket 1 * Digital voltmeter 1 * Dual USB power socket 1 * ON-OFF toggle switch 1 * Four-hole panel 1 * bag of screw terminals mounting package Note: 1. This cigarette lighter socket can not be used for cigarette lighting! 2. Car cigarette lighter socket wiring can not be positive and negative intermodulation, so as to avoid burning electronic products! 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List