4-in-1 Marine Switch Panel, 12V 4.2A Dual USB Socket Charger Power Outlet with LED Voltmeter and Cigarette Lighter

4-in-1 Charger Socket Panel - This 12V socket panel is designed with a 12V RV USB socket, a digital LED voltmeter, a 12V cigarette lighter socket, and an LED rocker switch. Convenient to install and use. Also detachable to replace other charger sockets or anything else that fits. Waterproof Dual USB Charging Socket - This 12V car USB socket has two built-in USB charging ports, outputting two ports: 5V/2.1A and 2.1A (4.2A total). It will automatically detect your devices and charge two devices simultaneously at optimal speed! Real-time LED voltmeter with a large digital voltmeter display showing voltage from 5 to 48V, allowing you to monitor the status of your car or boat battery and ensure the voltage is within normal limits. LED Rocker Switch on/off - Designed with a rocker style for easy operation. Long lifespan of up to 10,000 cycles. An additional cigarette lighter socket is portable for other devices in your vehicle. Overload protection – overheating, overcurrent, and overload protection; this dual USB charger socket is also intelligent enough to identify the most suitable current for your device. Package includes: 1 x 4-in-1 charger socket panel, 14 x stainless steel screws, 9 x blue terminals. LRFR is committed to providing every customer with the highest possible quality of customer service.