1. Introduction
Thank you for choosing the JESCO Lighting ULISSES SP103-S12 Adjustable Spot Light. This manual provides essential information for the safe installation, operation, and maintenance of your new lighting fixture. The ULISSES SP103-S12 is an adjustable spot light with a straight stem, designed for use with a remote 12V transformer (sold separately) and an MR16 bulb (not included).
2. Safety Information
- Professional Installation Recommended: Installation should be performed by a qualified electrician in accordance with local electrical codes.
- Power Source: This fixture operates on 12V input. It requires a compatible remote transformer (sold separately). Ensure the transformer's wattage capacity meets or exceeds the total wattage of the bulbs used.
- Bulb Type: Use only MR16 bulbs, with a maximum wattage of 50W. Do not exceed the specified wattage.
- Disconnect Power: Always disconnect power at the circuit breaker before installing, servicing, or replacing the bulb.
- Heat Warning: Bulbs can become hot. Allow the fixture and bulb to cool completely before handling or replacing.
- Safety Rating: This product is Class 2 rated.
- Do not operate the fixture with a damaged cord or if the housing is compromised.
3. Package Contents
Please inspect the package contents to ensure all items are present and undamaged:
- JESCO Lighting ULISSES SP103-S12 Adjustable Spot Light with Straight Stem (Chrome Finish)
Items NOT Included (Required for Operation):
- MR16 Bulb (Max 50W)
- Remote 12V Transformer
4. Setup and Installation
Follow these steps for proper installation of your ULISSES SP103-S12 spot light:
- Prepare for Installation: Ensure the power supply to the installation area is turned OFF at the circuit breaker.
- Connect to Transformer: This fixture requires a remote 12V transformer (sold separately). Connect the fixture's wiring to the output terminals of a compatible 12V transformer. Refer to the transformer's instruction manual for specific wiring diagrams and safety precautions. Ensure all connections are secure and insulated.
- Mount the Fixture: Securely mount the base of the spot light to the desired surface using appropriate hardware (not included). Ensure the mounting surface can support the fixture's weight.
- Insert MR16 Bulb: Carefully insert an MR16 bulb (max 50W, not included) into the socket within the spot head. Ensure the bulb is seated correctly.
- Adjust Direction: The spot head offers 90° adjustability and 350° rotation. Loosen the adjustment screw slightly, position the light as desired, and then tighten the screw to secure it.
- Restore Power: Once installation is complete and all connections are secure, restore power at the circuit breaker.

Figure 1: Front view of the JESCO Lighting ULISSES SP103-S12 Adjustable Spot Light, showcasing its chrome finish and adjustable head.

Figure 2: Side view of the JESCO Lighting ULISSES SP103-S12 Adjustable Spot Light, highlighting the straight stem and the pivot point for head adjustment.
5. Operating Instructions
- Turning On/Off: The spot light is controlled by the remote 12V transformer or the wall switch connected to the transformer.
- Adjusting Light Direction: To change the direction of the light, gently loosen the adjustment screw on the side of the spot head. Pivot the head to achieve the desired angle (up to 90° tilt) and rotate the entire head (up to 350°). Once positioned, tighten the adjustment screw to secure the head.
- Dimming: If your remote transformer and MR16 bulb are dimmable, the light output can be adjusted using a compatible dimmer switch connected to the transformer.
6. Maintenance
- Cleaning: Ensure power is off and the fixture is cool. Wipe the fixture with a soft, dry cloth. Do not use abrasive cleaners, solvents, or polishes as they may damage the finish.
- Bulb Replacement:
- Turn off power to the fixture at the circuit breaker.
- Allow the bulb and fixture to cool completely.
- Carefully remove the old MR16 bulb.
- Insert a new MR16 bulb (max 50W) into the socket.
- Restore power.
7. Troubleshooting
- Light Does Not Turn On:
- Check if the power supply to the fixture is on at the circuit breaker.
- Verify that the remote transformer is receiving power and functioning correctly.
- Ensure the MR16 bulb is properly seated in the socket and is not burnt out.
- Check all wiring connections between the fixture and the transformer.
- Light Flickers:
- Ensure the MR16 bulb is securely inserted.
- Check for loose wiring connections.
- The bulb may be faulty or nearing the end of its life. Replace the bulb.
- The transformer may be overloaded or malfunctioning.
- Light Does Not Dim:
- Confirm that both the MR16 bulb and the remote transformer are dimmable.
- Ensure a compatible dimmer switch is installed and functioning correctly.
8. Specifications
| Model | SP103-S12-CH |
| Brand | Jesco Lighting |
| Product Line | ULISSES |
| Material | Metal |
| Finish | Chrome |
| Dimensions (L x Dia) | 1-3/8” (L) x 1-1/4” (Diameter) |
| Bulb Type | MR16 (Not Included) |
| Max Wattage | 50W |
| Dimming | Yes (with compatible transformer and bulb) |
| Input Voltage | 12V |
| Adjustability | 90° Tilt |
| Rotation | 350° |
| Safety Rating | CLASS 2 |
| Control Method | Remote (via transformer) |
| UPC | 848087059074 |
9. Warranty and Support
Specific warranty information for the JESCO Lighting ULISSES SP103-S12 is not provided in this document. For warranty details, technical support, or replacement parts, please contact Jesco Lighting directly or refer to their official website. Keep your purchase receipt as proof of purchase.