1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Auxbeam 12 Gang Switch Panel RB120. Designed for DC 12V~24V accessories, this multifunctional control panel offers enhanced control and safety for various vehicles including cars, boats, and RVs.
2. Key Features
- Specifications: Designed for DC 12V~24V accessories, with a power range of 1200W~2400W, a working temperature range of -40~221°F, and a maximum current of 100A.
- Dimmable Settings: Features an auto-sensing dimming function and turn on/off backlight function. The backlight adjusts based on ambient light to reduce visual distraction. The 'mode' button can also turn off the backlight during the daytime.
- Multifunction: Offers three utility functions: Toggle (constant light), Momentary (press and hold to turn on, release to turn off), and Pulsed (strobe mode). Includes a memory function to retain settings and an RGB function for customizable panel light colors.
- Safe Protection: Equipped with a solid-state relay for high sensitivity and stability. Features a circuit breaker providing over-voltage, reverse polarity, over-current, and thermal protection. The control box base includes thermal conductive strips for excellent heat dissipation.
- Two-Sided Output: The current control box splits outputs into two sides for flexible wiring and reduced clutter.
- Wide Compatibility: Suitable for controlling multiple devices such as lights, exhaust fans, speakers, and stereos in RVs, trucks, sports cars, boats, UTVs, and ATVs.
3. What's Included
- Switch Panel
- Circuit Control Box
- Circuit Breaker
- Stickers
- Cover
- Installation Kits

Image: All components included with the Auxbeam RB120 12 Gang Switch Panel, neatly arranged.
4. Setup and Installation
4.1 Wiring Diagram Overview
The system simplifies wiring by consolidating connections to a central control box. Connect your auxiliary devices to the numbered terminals on the control box, and the main power to your vehicle's battery.

Image: A detailed wiring diagram illustrating connections from the vehicle battery to the control box and then to various auxiliary devices.
4.2 Control Box Installation
Mount the circuit control box securely in the engine bay. Ensure it is placed in a location that allows for proper ventilation and is protected from excessive heat or moisture. The box is designed with a robust, waterproof casing.
4.3 Switch Panel Mounting
The switch panel can be mounted in various locations within the vehicle cabin. Use the provided mounting brackets and screws to secure it. Ensure the chosen location provides easy access and visibility without obstructing driving.

Image: The Auxbeam RB120 12 Gang Switch Panel mounted on the dashboard of a vehicle, showing its compact design.
4.4 ACC Fuse Connection
To connect the ACC Fuse:
- Connect the red ACC Fuse wire to the fuse adapter.
- Open the ACC gear and check if the ACC fuse in the car is powered.
- Take out the original car ACC Fuse, insert the fuse adapter, and then reinsert the entire fuse adapter into the original car ACC Fuse position.
Alternatively, you can connect the red ACC wire directly to the battery for constant power, though this is not recommended as it may consume battery power when the vehicle is off.
4.5 Organizing Wires
The two-sided output design of the control box allows for more flexible wiring, reducing wire clutter in the engine bay and under the dash. Utilize the provided zip ties and mounting options to maintain a clean and organized installation.
5. Operating Instructions
5.1 Lighting Modes
The Auxbeam 12 Gang Switch Panel offers three distinct lighting modes for connected accessories:
- Toggle: Provides constant light output. Press once to activate, press again to deactivate.
- Momentary: Activates the device only while the button is pressed and held. Releases when the button is released.
- Pulsed: Activates a strobe or flashing mode for the connected device.
To switch between modes, double-press the 'MODE' button. Press the 'MODE' button once to save your selection.

Image: Visual representation of the three lighting modes (Toggle, Momentary, Pulsed) available on the switch panel.
5.2 RGB Backlight and Dimmable Settings
The switch panel features customizable RGB backlights and an automatic dimming function. The backlight brightness adjusts automatically based on ambient light conditions. You can also manually turn off the backlight by pressing the 'MODE' button during the daytime to reduce visual distraction.

Image: The switch panel displaying automatic dimming in low light and manual backlight deactivation in bright conditions.
5.3 Memory Function
The panel retains your last settings even after the vehicle is turned off. When the vehicle is restarted, the memory function ensures quick access to your preferred device configurations.
5.4 App Control (RB120-TWO SIDED OUTPUT-WITHOUT APP variant does not support App Control)
This specific RB120 variant does not include App Control functionality. For models with App Control, users can typically manage settings, change RGB colors, and control devices directly from a smartphone application.
6. Maintenance
The Auxbeam RB120 switch panel is designed for durability and minimal maintenance. Its IP65 waterproof rating ensures protection against dust and water ingress, making it suitable for harsh environments. The solid-state relay design contributes to its longevity and stable performance.
- Cleaning: Use a soft, damp cloth to clean the switch panel and control box. Avoid abrasive cleaners.
- Inspection: Periodically check all wiring connections for tightness and ensure the control box is free from debris or excessive moisture.
7. Troubleshooting
- Device not turning on: Check all wiring connections, ensure the circuit breaker is not tripped, and verify the fuse for the specific channel is intact.
- Switch panel not working when vehicle is off: If connected via ACC fuse, the system will only work when the vehicle is powered on. For constant power, connect the red ACC wire directly to the battery (not recommended for prolonged periods).
- Backlight too bright/dim: The panel features auto-sensing dimming. If manual adjustment is desired, use the 'mode' button to turn off the backlight during the day.
- Memory function not working: Ensure the 'MODE' button is pressed to save settings after changes. Long press the ON/OFF button for 12 seconds to restore factory settings if needed.
8. Specifications
| Feature | Detail |
|---|---|
| Operation Mode | ON-OFF |
| Current Rating | 100 Amps |
| Operating Voltage | 12 Volts |
| Contact Type | Normally Closed |
| Connector Type | Plug In |
| Item dimensions L x W x H | 15.35 x 9.05 x 5.11 inches |
| Circuit Type | 12-way |
| Actuator Type | Push Button |
| International Protection Rating | IP65 |
| Upper Temperature Rating | 221 Degrees Fahrenheit |
| Control Method | Touch |
| Wattage | 2400 watts |
| Item model number | RB120 |
9. Warranty and Support
Auxbeam Team guarantees a 2-year warranty and 24-hour friendly online service. If you encounter any issues, please feel free to contact us.


