1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your Cal Lighting TR-20-WH Transformer. This solid-state transformer is designed to convert standard 120V AC input to a low voltage output, suitable for compatible lighting applications, such as those found in ceiling fan lighting kits.
2. Safety Information
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, or other hazards. Retain this manual for future reference.
- Electrical Safety: Always disconnect power at the circuit breaker or fuse box before installing, servicing, or cleaning this product.
- Qualified Personnel: Installation should be performed by a qualified electrician or a person knowledgeable in electrical wiring, in accordance with all applicable local and national electrical codes.
- Voltage and Wattage: Ensure the input voltage (120 Volts) and output wattage (20 watts maximum) are compatible with your electrical system and the connected lighting fixture.
- Environment: Do not install in wet locations or areas exposed to extreme temperatures.
- Product Integrity: Do not modify the transformer or use it for purposes other than its intended use.
3. Product Overview
The Cal Lighting TR-20-WH is a compact, white solid-state transformer. It features a standard US-style two-prong plug for 120V AC input and a low-voltage output connector for connecting to compatible lighting fixtures.

This image shows the Cal Lighting TR-20-WH Transformer, a compact white unit with a standard two-prong US electrical plug on one end and a low-voltage output connector on the other.
4. Setup and Installation
Follow these steps for proper installation of your TR-20-WH Transformer:
- Power Disconnection: Before beginning any installation, ensure that the power supply to the circuit where the transformer will be installed is completely disconnected at the main circuit breaker or fuse box.
- Mounting: The transformer is designed for a protruding mounting type. Securely mount the transformer in a suitable, accessible location that allows for proper ventilation and is protected from moisture.
- Input Connection: Connect the standard US-style two-prong plug of the transformer to a compatible 120V AC power outlet or wiring. Ensure connections are secure and comply with all local electrical codes.
- Output Connection: Connect the low-voltage output from the transformer to your compatible lighting fixture. Verify that the lighting fixture's voltage and wattage requirements do not exceed the transformer's 20-watt capacity.
- Power Restoration: Once all connections are secure and verified, restore power to the circuit.
Note: This transformer is commonly used for applications such as ceiling fan lighting kits. Always ensure the connected load does not exceed 20 watts.
5. Operating Instructions
The Cal Lighting TR-20-WH Transformer operates automatically once properly installed and connected to a power source and a compatible low-voltage lighting fixture. It converts the 120V AC input to the necessary low voltage for the connected light(s).
- Ensure the power supply is on.
- Operate your lighting fixture as per its own instructions (e.g., using a wall switch or remote control).
6. Maintenance
The Cal Lighting TR-20-WH Transformer requires minimal maintenance. To ensure optimal performance and longevity:
- Cleaning: Periodically wipe the exterior of the transformer with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Inspection: Occasionally inspect the wiring and connections for any signs of wear, damage, or loose connections.
- Environment: Ensure the transformer remains in a dry environment and is not exposed to excessive heat or direct sunlight.
No user-serviceable parts are inside. Do not attempt to open or repair the transformer.
7. Troubleshooting
If you experience issues with your Cal Lighting TR-20-WH Transformer, consider the following:
- No Power to Light:
- Verify that the main power supply to the circuit is on.
- Check if the transformer's plug is securely inserted into the outlet.
- Ensure the connections between the transformer and the lighting fixture are secure.
- Test the lighting fixture with a known working power source if possible, to rule out a faulty bulb or fixture.
- Light Flickering or Dim:
- Confirm that the total wattage of the connected lights does not exceed the transformer's 20-watt capacity. Overloading can cause performance issues.
- Check for loose connections.
- Transformer is Hot:
- A slight warmth is normal during operation. However, if the transformer is excessively hot to the touch, immediately disconnect power. This could indicate an overload or internal fault. Verify load wattage.
If troubleshooting steps do not resolve the issue, discontinue use and contact customer support or a qualified electrician.
8. Specifications
| Brand | Cal |
| Manufacturer | Cal Lighting |
| Model Number | TR-20-WH (Item model number: CALTR-20-WH) |
| Part Number | CALTR-20-WH |
| UPC | 020193016763 |
| Input Voltage | 120 Volts |
| Output Wattage | 20 watts |
| Power Source | Corded Electric |
| Plug Format | A- US style |
| Material | Metal |
| Color/Finish | White |
| Product Dimensions | 1 x 1 x 1 inches |
| Item Weight | 1 pound |
| Mounting Type | Protruding |
| Usage | Ceiling fan (example application) |
| Date First Available | August 12, 2010 |
9. Warranty Information
This Cal Lighting TR-20-WH Transformer comes with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, accident, misuse, abuse, or unauthorized modifications.
For warranty claims, please retain your proof of purchase and contact the retailer or manufacturer directly.
10. Customer Support
If you have any questions, require technical assistance, or need to report an issue with your Cal Lighting TR-20-WH Transformer, please contact your retailer or visit the official Cal Lighting website for support resources and contact information.
Always refer to the manufacturer's official channels for the most accurate and up-to-date support.

