Nilight 2-Gang Rocker Switch Panel with Dual 4.8A USB Charger and Voltmeter — Blue, Waterproof 12V–24V

The Nilight 90116C is a compact 2-gang rocker switch panel that combines two ON/OFF switches, a 4.8A dual USB charger and a built-in voltmeter in a waterproof housing for 12V–24V vehicles.

This all-in-one control module is built to simplify accessory management in cars, trucks, RVs, boats and off-road vehicles. It replaces multiple separate parts with a single, neater unit that mounts in standard dash openings and gives you fast dual-device charging plus a live voltage readout at a glance. Constructed from reinforced aluminum and fitted with conductive terminals, the panel prioritizes durability and reliable electrical performance in demanding mobile environments.

How does the dual USB charger speed up device charging?

The integrated USB module delivers a total of 4.8 amps, split evenly into two 2.4A outputs so two devices can charge simultaneously at near-maximum USB current. That means smartphones, tablets, GPS units and other USB-powered accessories top up faster than with ordinary single-output ports.

• 2.4 A per USB port for efficient device charging
• Total 4.8 A output to support two devices at once
• Works with phones, tablets, dash cams and power banks

What does the voltmeter show and why is that useful?

The center-mounted digital voltmeter displays the system voltage in real time, so you can quickly judge battery health and charging system performance while the vehicle is running. Monitoring voltage helps you spot low-battery conditions or charging issues before they become a breakdown problem.

• Continuous numeric display of 12V–24V system voltage
• Quickly identifies dropping voltage under load
• Useful for battery maintenance and troubleshooting

Is the Nilight 90116C suitable for outdoor and marine use?

The housing and components are designed for mobile and marine environments, offering a waterproof interface that resists moisture and splashes when mounted properly. Night-glow stickers and illuminated rocker switches enhance visibility in low light without distracting the driver.

• Water-resistant design for boats, RVs and vehicles
• Night glow stickers for low-light visibility
• Durable aluminum faceplate resists wear and corrosion

How easy is installation and what comes in the box?

Installation is straightforward for anyone accustomed to dash or panel upgrades: wire the two switches, connect the USB/voltmeter power leads to a 12V–24V source and secure the panel with the included hardware. Nilight supplies screws and two sets of DIY stickers so you can label switches for lights, pumps, winches or other accessories.

• Includes 1x 2-gang switch panel and 4 mounting screws
• Two sets of stickers allow custom labeling of switches
• Compatible with 12V–24V electrical systems

Who is this for? If you need a compact, multipurpose control module for adding accessories, charging devices and monitoring voltage in one tidy unit, the Nilight 90116C fits trucks, Jeeps, ATVs/UTVs, RVs, yachts and most 12V–24V platforms. It’s aimed at DIY installers and vehicle owners who want durable construction, faster dual-device charging and an easy visual check of system voltage without adding separate gauges or chargers.