1. Product Overview
This manual provides instructions for the installation and operation of the Armacost Lighting 511121 Remote Touch Dimmer and On/Off Switch. This device is designed for smooth, full-range dimming of white LED lighting using capacitive sensing technology. It features a small control unit and a 1-inch peel-and-stick stainless steel remote sensor disk, allowing for flexible placement and innovative control solutions for various lighting applications.

Image 1.1: Armacost Lighting 511121 Remote Touch Dimmer and On/Off Switch.
2. Safety Information
- Always disconnect power before installing or servicing the dimmer.
- This product is intended for use with 12V or 24V DC LED lighting systems only.
- Do not exceed the maximum wattage rating of 96 watts.
- Ensure all connections are secure and properly insulated to prevent short circuits.
- For best results, the Remote Touch LED Dimmer should be electrically isolated from other devices to prevent interference.
- Consult a qualified electrician if you are unsure about any part of the installation process.
3. Package Contents
Verify that all components are present before beginning installation:
- One (1) Armacost Lighting 511121 Remote Touch Dimmer Module
- One (1) 1-inch Peel-and-Stick Stainless Steel Remote Sensor Disk

Image 3.1: The dimmer module and the remote touch sensor disk.
4. Specifications
| Model Number | 511121 |
| Operation Mode | OFF-NONE-ON |
| Current Rating | 2 Amps |
| Operating Voltage | 12-24 Volts DC |
| Contact Type | Normally Closed |
| Connector Type | Quick Connect |
| Terminal | Quick Connect |
| Dimensions (L x W x H) | 1.88 x 2.88 x 2 inches |
| Actuator Type | Touch |
| Contact Material | Stainless Steel |
| International Protection Rating | IP20 |
| Wattage | 96 watts |
| Type of Bulb | LED |
| Batteries Required | No |
5. Setup and Installation
Follow these steps for proper installation of your Remote Touch Dimmer:
- Power Disconnection: Ensure all power to the lighting circuit is turned off at the breaker before beginning installation.
- Connect to Power Supply: Connect the dimmer module to a compatible 12V or 24V DC LED power supply (sold separately). Refer to the power supply's instructions for proper wiring.
- Connect to LED Lighting: Connect the dimmer module's output to your Armacost Lighting RibbonFlex Pro White Tape Light or other compatible white LED lighting. This dimmer is specifically designed for white LED tape light.
- Mount Control Unit: Mount the main control unit in a secure, accessible location, ensuring proper ventilation.
- Mount Sensor Disk: The 1-inch peel-and-stick stainless steel remote sensor disk can be surface-mounted or countersunk for a flush installation. Place it in a convenient location where touch control is desired. The sensor disk connects to the control unit via a 48-inch thin wire lead.
- Electrical Isolation: For optimal performance and to prevent interference, ensure the Remote Touch LED Dimmer is electrically isolated from other devices.
- Restore Power: Once all connections are secure and installation is complete, restore power to the circuit.

Image 5.1: Dimmer module showing input and output wiring terminals.

Image 5.2: Detailed view of the touch sensor dimmer module and its remote disk.
Video 5.3: An overview of Armacost Lighting LED products, including installation of tape lights, power supplies, and various control options. This video demonstrates general setup principles applicable to the touch dimmer system.
6. Operating Instructions
The Armacost Lighting 511121 Remote Touch Dimmer provides intuitive control over your LED lighting:
- Turn On/Off: Simply tap the stainless steel sensor disk to turn the connected LED lights on or off.
- Dimming: To adjust brightness, touch and hold the sensor disk. The lights will smoothly dim up or down. Release your finger when the desired brightness level is reached.
- Brightness Memory: The dimmer features a memory function that saves the last brightness setting. When the lights are turned back on, they will return to the previously set level.

Image 6.1: Example of under cabinet LED lighting, which can be controlled by the touch dimmer.
7. Maintenance
The Armacost Lighting 511121 Remote Touch Dimmer requires minimal maintenance:
- Cleaning: Wipe the sensor disk and dimmer module with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the finish or internal components.
- Inspection: Periodically check all wiring connections to ensure they remain secure.
- Environment: Ensure the dimmer module is not exposed to excessive moisture or extreme temperatures outside its operating range (32°F to 80°C).
8. Troubleshooting
If you encounter issues with your Remote Touch Dimmer, refer to the following common solutions:
- Lights Not Turning On:
- Verify that the power supply is connected and receiving power.
- Check all wiring connections between the power supply, dimmer module, and LED lighting.
- Ensure the LED lighting is compatible with a 12V or 24V DC system and is not exceeding the dimmer's 96-watt capacity.
- Dimming Not Functioning Correctly:
- Ensure the sensor disk is clean and free of obstructions.
- Confirm the sensor disk's wire lead is securely connected to the dimmer module.
- Check for any electrical interference from nearby devices; ensure the dimmer is electrically isolated.
- Intermittent Operation:
- This dimmer is designed to work specifically with Armacost Lighting RibbonFlex Pro White Tape Light. Incompatibility with other LED products may cause issues.
- Re-check electrical isolation as interference can cause erratic behavior.
9. Warranty and Support
The Armacost Lighting 511121 Remote Touch Dimmer and On/Off Switch comes with a Limited One-Year Warranty. This warranty covers defects in materials and workmanship under normal use.
For technical support, warranty claims, or additional product information, please contact Armacost Lighting directly. Refer to the official Armacost Lighting website or product packaging for current contact details.





