4 In 1 USB, 12v Socket, Voltmeter and Switch (Square Surface Mount)
4 In 1 USB, 12v Socket, Voltmeter and Switch (Square Surface Mount)
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4 In 1 USB, 12v Socket, Voltmeter and Switch (Square Surface Mount)
📝 4-in-1 USB, 12V Socket, Voltmeter & Switch (Square Surface Mount)
The 4-in-1 USB, 12V Socket, Voltmeter & Switch Surface Mount Hub is a compact, fully pre-wired power station designed for caravans, campervans, RVs, boats, 4WDs, and off-grid systems. With dual USB charging, a 12V socket, a digital voltmeter, and an integrated ON/OFF switch, this all-in-one panel delivers convenient power access and system monitoring in a tidy, professional surface-mount assembly. Available in Red, Green or Blue backlit Led variants.
⭐ Essential Benefits
• Dual USB charging – fast 5V/4.2A output for phones and tablets.
• 12V accessory socket – ideal for GPS units, portable fridges, and 12v devices.
• Real-time voltage display – monitor system voltage (6V–30V).
• ON/OFF master switch – control power to the socket and USB ports easily.
• Pre-wired assembly – includes fuse and ring terminals for rapid installation.
⚙️ Functionality
This pre-wired panel connects directly to your 12v or 24v system using the supplied M6 ring terminals. The integrated inline fuse protects the circuit, while the toggle switch controls power to the USB ports and accessory socket. Mount the panel on any flat surface using the included hardware and enjoy immediate access to charging, voltage monitoring, and power control in one module.
🔌 Compatibility
• Works with 12v and 24v DC systems
• Suitable for caravans, campervans, boats, 4WDs, SUVs, and off-grid cabins
• Powers phones, tablets, cameras, GPS units, portable fridges, camp lights, and more
🧰 Installation Difficulty
🟢 2/5 (Easy)
Pre-wired panel with inline fuse and ring terminals for fast connection.
🔍 Features
• Dual USB QC3.0 charging ports
• 12V socket output
• Digital voltmeter (6–30V range)
• Integrated ON/OFF toggle switch
• Pre-wired with M6 ring terminals
• Inline glass fuse
• ABS body with aluminium mounting plate
• Surface-mount installation
📊 Specifications
| Specification | Value |
|---|---|
| Dimensions | (W)104mm x (H)86mm x (D)75mm |
| Power Input | DC 12–24V |
| USB Output | 5V / 4.2A total |
| Power Outlet | DC 12V |
| Voltmeter Range | 6–30V DC |
| Operating Temperature | –40°C to +85°C |
| Material | ABS + Aluminium Plate |
| Weight | Approx. 130g |
| Fuse Type | Inline Glass Fuse |
| Terminal Type | M6 Ring Terminals |
📦 What’s Included
• 1 × Dual USB Charger
• 1 × 12V Socket
• 1 × LED Voltmeter Display
• 1 × ON/OFF Toggle Switch
• 1 × 4-Hole Surface Mount Panel
• 4 × Mounting Screws
🙌 Why Choose This Product?
The 4-in-1 Surface Mount Power Hub gives you a clean, organized solution for charging, voltage monitoring, and system control. With its pre-wired configuration and built-in protection, installation is fast and simple, making it ideal for both DIY builds and professional fit-outs.
🚀 Our Promise
Order today for same-day dispatch and enjoy organised, reliable power management across any 12v–24v setup.
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Excellent and seems very good quality
Ross Henderson -
Good product fast service
Marie -
Great thanks. They fit like a glove.
Ben Strautins

Testimonials
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NO FUSS
I found what I wanted, I ordered and the products arrived. Good packaging. Streamline process - no fuss. Thank you.
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FAST POSTAGE
Products ordered were as described. Fast and efficient delivery. Loved the little extra touch of the packet of gels!
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FAIR PRICING
This store has great products at very good (fair) prices. Great service and quick delivery
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