4-in-1 switch panel, waterproof digital voltmeter, 12V car power supply, dual USB charger, cigarette lighter socket with rocker switch

General Description: The 4-in-1 switching panel is a versatile accessory designed for vehicle and home applications. It integrates a waterproof digital voltmeter, a dual USB charger with QC3.0 Quick Charge technology, and a cigarette lighter socket, all controlled by a toggle switch. This device is ideal for charging various electronic devices while monitoring battery voltage. Technical Specifications Color: Black casing with blue LED display Material: ABS Rocker switch: 20 A 12 V DC Power socket: DC 12 V Voltmeter display range: 0–24 V USB port type: Quick Charge QC3.0 Cigarette lighter socket dimensions: approx. 38 mm x 50 mm USB socket dimensions: approx. 38 mm x 50 mm Rocker switch dimensions: approx. 38 mm x 30 mm LED voltmeter dimensions: approx. 38 mm x 30 mm Four-hole panel dimensions: approx. 103 mm x 87 mm (L x W) Compatibility and accessories Compatible with all common USB devices (tablets, GPS, digital cameras, mobile phones, etc.) Compatible devices: Samsung Galaxy S10/S9, LG G6, Huawei Mate P20/P10, etc. Recommended Use: Cars, trucks, buses, SUVs, homes, boats, yachts, motorhomes, ATVs, UTVs, golf carts. Installation: Easy to install with 4 included stainless steel mounting screws. Use: Allows simultaneous charging of two devices via the USB port. Displays battery voltage for real-time monitoring. Rocker switch for easy power control. Other Information: Package Contents: 1 x 12V cigarette lighter socket, 1 x blue digital voltmeter, 1 x QC3.0 USB dual car charger socket, 1 x on/off rocker switch, 1 x four-hole panel, 4 x stainless steel mounting screws.