Features:12-24V input voltage, widely used for 12V-24V cars, RV, caravans, trailers, buses, boats, yachts, marine etc.Dual USB charger port for meet your various charging needs, fast charging for iOS or Android mobile phone, GPS navigation, camera, etc.Built-in voltmeter, can real-time monitor your vehicle's voltage, more convenient and safe.Cigarette lighter socket with seal cover, dust-proof and waterproof.ABS or PC or PBT environmental protection and flame-resistant materials, can be used in an environment with -25 to 80 temperature.Specifications:Material: ABS and PC and PBTItem Color: BlackLight Color: Blue, Green (optional)Max. Power: 240WInput Voltage: DC12V or 24VOutput Voltage: 5VOutput Current: 3.1AVoltmeter Measurement Range: 6-30VProtection Grade: IP65Certification: CESize: 10.5 x 8.5cm or 4.1 x 3.3inPackage Weight: approx.151gFitment: UniversalPackage List:1 x Dual USB Car Charger Voltmeter Switch4 x Screws