Daiertek Marine Usb Rocker Switch 12V Dual Charger Ports 4.2A Waterproof Outlet Socket With Blue Led Digital Voltmeter For Rocke

Specifications: Material: Abs Power Input: 12-24Vdc Usb Output Rating: 4.2A 5V Product Dimension: 0.96*1.90*1.98 Inches (24.5*48.25*50.36Mm) Mounting Hole Size: 0.86*1.46 Inches (21*37Mm) Operating Temperature: -40 To 70?