Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your VOLT 100W Slim Line Low Voltage Transformer. Designed for LED landscape lighting systems, this transformer offers efficient and reliable power distribution with integrated timer and photocell functionalities. Please read this manual thoroughly before installation and use to ensure safe and optimal performance.
Safety Information
WARNING: Risk of Fire.
If installation involves running wiring through a building structure, special wiring methods are needed. Consult a qualified electrician for such installations.
This transformer is suitable for both indoor and outdoor use.
Do not load any transformer to more than 80% of its capacity. For this 100W model, the maximum load should not exceed 80W.
Do not connect two or more power supplies in parallel.
Not for use with dimmers.
For installation in or on non-combustible materials only.
Ensure all electrical connections are secure and comply with local electrical codes.
Product Overview
The VOLT 100W Slim Line Low Voltage Transformer is engineered for efficiency and ease of use in LED landscape lighting applications. Key features include:
- Low Profile Magnetic Transformer: Slimmer, lighter, and simpler to install with a single 15V tap to compensate for voltage loss.
- Modular Timer with Photocell: Integrated timer visible through the housing window, allowing for dusk-to-dawn operation or timed shut-off. The photocell is built into the timer module.
- Easy Installation: Features clamp-type terminal blocks for quick and secure wire connections, accepting up to 10-gauge wire.
- High Performance: Utilizes a toroidal core for reliable, efficient, cooler, and quieter operation compared to other transformer types.
- Durable Construction: Stainless steel enclosure designed for longevity.

Figure 1: Front angled view of the VOLT 100W Slim Line Low Voltage Transformer, showcasing its compact design and integrated timer/photocell window.

Figure 2: Direct front view of the transformer, highlighting the timer and photocell module.
Setup and Installation
- Mounting: Securely mount the transformer to a wall or suitable non-combustible surface using the integrated mounting bracket at the top. Ensure it is placed in a location that allows for proper ventilation and access.
- Wiring Connections:

Figure 3: Internal view of the transformer, showing the wiring compartment, terminal blocks, and safety warnings.
- Open the transformer door to access the wiring compartment.
- Strip approximately 1/2 inch of insulation from the ends of your low-voltage landscape lighting wires (up to 10-gauge).
- Insert the stripped wire ends into the clamp-type terminal blocks. Ensure the wire is fully inserted and the clamp is securely closed.
- Connect one wire to the "COM" (Common) terminal and the other to the "15V" terminal.
- Ensure all connections are tight and secure.
- Power Connection: Plug the transformer's power cord into a grounded 120V AC outdoor-rated electrical outlet.
- Load Capacity: Remember not to exceed 80% of the transformer's 100W capacity (i.e., do not connect more than 80W of total lighting load).
Operating Instructions
The VOLT Slim Line Transformer features a modular timer with an integrated photocell for automated operation.
- Timer Settings: The timer dial allows you to select various operating modes:
- ON: Lights will remain on continuously.
- OFF: Lights will remain off.
- Dusk-to-Dawn (Photocell): The integrated photocell will detect ambient light levels. Lights will turn on automatically at dusk and turn off at dawn.
- Timed Operation (e.g., 4H, 6H, 8H, 10H): Lights will turn on at dusk (detected by the photocell) and remain on for the selected duration (e.g., 4 hours, 6 hours, etc.) before turning off.
- Photocell Functionality: The photocell is located within the timer module, visible through the clear window on the transformer door. Ensure the photocell is not obstructed by debris, shadows, or other light sources that could interfere with its operation.
Maintenance
- Cleaning: Periodically clean the exterior of the transformer with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Photocell: Keep the photocell window clean and free of dirt, dust, or obstructions to ensure accurate dusk/dawn detection.
- Connections: Annually inspect all wiring connections to ensure they remain secure and free from corrosion.
- Ventilation: Ensure the area around the transformer remains clear to allow for proper airflow and prevent overheating.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lights not turning on. |
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| Lights flickering or dim. |
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| Timer not functioning correctly. |
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Specifications
| Feature | Detail |
|---|---|
| Model | 100W Slim Line Low Voltage Transformer |
| Power Source | Corded Electric |
| Output Voltage | 15V AC |
| Maximum Load Capacity | 100 Watts (80W recommended operational limit) |
| Product Dimensions (H x W x D) | 14.4" x 5.27" x 3.7" |
| Weight | 10.75 Pounds |
| Mounting Type | Wall Mount |
| Certification | ETL Listed |
| Included Components | Timer/Photocell Module |

Figure 4: Dimensional diagram of the transformer, indicating height and width measurements.
Warranty and Support
This VOLT Slim Line Transformer comes with an industry-leading Lifetime Warranty. This warranty covers the core, stainless steel enclosure, and all electrical components, ensuring a lifetime of worry-free use.
For technical support, warranty claims, or any questions regarding your product, please visit the official VOLT Lighting website or contact their customer service directly. Refer to the product packaging or the VOLT Lighting website for the most current contact information.
You can also visit the VOLT Store on Amazon for more information and products.





