1. Important Safety Information
WARNING: UV-C light can be harmful to eyes and skin. Always wear proper safety gear during installation and handling. Use only as directed in UV system guidelines. Do not look directly at the light when the bulb is operating. Ensure the system is powered off before attempting any installation or maintenance.
2. Product Overview
The LSE Lighting UV2400XLAM1 UV Bulb is a high-output UV-C germicidal lamp designed as a replacement for Honeywell UV2400U1000 and UV2400U5000 systems. This bulb emits 254nm UV-C light, effective for air purification in HVAC systems. It features a 4-pin base (all pins on one end) and is constructed with premium quartz glass tubing for maximum UV transmission.

Image: The LSE Lighting UV2400XLAM1 UV Bulb, a tubular lamp with a 4-pin base on one end.

Image: The LSE Lighting UV2400XLAM1 UV Bulb shown in its protective packaging.
3. Specifications
| Feature | Detail |
|---|---|
| Brand | LSE Lighting |
| Model Number | UV2400XLAM1 |
| Compatible Systems | Honeywell UV2400U1000, UV2400U5000 |
| Wattage | 36 Watts (UV-C) |
| UV Type | UV-C 254nm |
| Base Type | 4-pin (all pins on one end) |
| Glass Type | Quartz Glass Tube |
| Effective Hours Rating | Up to 12,000 hours |
| Material | Glass |
| Product Dimensions | 5"W x 3"H (Note: Please refer to your system's bulb size for exact fit, as this dimension may refer to packaging or a general product measurement.) |
| EPA Registration | Est. No. 96823-PA-1 |

Image: Seal indicating EPA Establishment Registration No. 96823-PA-1.
4. Installation Instructions
This replacement lamp is designed for easy installation into compatible Honeywell UV systems. It is recommended to have two people for the installation process to ensure safety and ease of handling.
- Power Off: Before beginning, ensure the UV system and the HVAC unit are completely powered off at the main power source to prevent electrical shock or UV exposure.
- Locate Bulb: Identify the existing UV bulb within your Honeywell UV2400U1000 or UV2400U5000 system.
- Remove Old Bulb: Carefully pull the old bulb straight out of its holder. The system typically uses spring clips that retract automatically. Some force may be required, but avoid excessive force. It may be helpful for one person to hold the spring clips back while the other pulls the bulb.
- Insert New Bulb: Align the 4-pin base of the new LSE Lighting UV2400XLAM1 bulb with the socket. Gently push the new bulb straight into the holder until the spring clips engage and secure it. Ensure the bulb is fully seated.
- Power On: Once the new bulb is securely installed, restore power to the UV system and HVAC unit.
- Verify Operation: Check for proper operation of the UV lamp according to your system's indicators.
Refer to your specific Honeywell UV system's instruction manual for detailed diagrams and additional safety precautions.

Image: A diagram illustrating the process of installing a UV bulb into an HVAC system, showing the bulb being inserted into a fixture.
5. Operating Instructions
Once installed and powered on, the LSE Lighting UV2400XLAM1 UV Bulb operates continuously within your Honeywell UV system to provide germicidal air treatment. The UV-C light works to neutralize airborne microorganisms as air passes through your HVAC system.
- The bulb is designed for continuous operation.
- Do not attempt to operate the bulb outside of its intended UV system.
- Avoid direct exposure to the UV-C light.
6. Maintenance
For optimal performance and continued effectiveness of your UV air purification system, regular maintenance is required.
- Bulb Replacement: The LSE Lighting UV2400XLAM1 UV Bulb has an effective hours rating of up to 12,000 hours. It is recommended to replace the bulb every 12 months (approximately 1 year) to ensure consistent germicidal output. UV-C output diminishes over time, even if the bulb still appears to be lit.
- Cleaning: Periodically inspect the quartz glass tube for any dust or debris accumulation. If necessary, gently wipe the bulb with a clean, lint-free cloth. Ensure the system is powered off before cleaning.

Image: A graph illustrating the stable UV intensity maintenance of LSE Lighting UV lamps (above 80% for 13,000 hours) compared to other UV lamps with shorter lamp life and lower intensity.
7. Troubleshooting
If your UV system is not functioning as expected after installing the new bulb, consider the following:
- Bulb Not Lighting:
- Ensure the system is receiving power. Check circuit breakers and power switches.
- Verify the bulb is fully and correctly seated in the socket. Remove and re-insert the bulb, ensuring the 4-pins are properly aligned.
- Inspect the pins on the bulb and the socket for any damage or bent pins.
- If the system has an indicator light, check its status. Refer to your Honeywell system manual for indicator light meanings.
- Reduced Effectiveness:
- Confirm the bulb has not exceeded its recommended 12-month replacement interval. UV-C output decreases over time.
- Check if the quartz glass tube is clean. Dust or debris can block UV-C light.
If issues persist, consult a qualified HVAC technician or refer to your Honeywell UV system's comprehensive troubleshooting guide.
8. Warranty and Support
The LSE Lighting UV2400XLAM1 UV Bulb comes with a 1-year warranty. For warranty claims or technical support, please contact LSE Lighting directly through their official channels or the retailer where the product was purchased. Ensure you have your purchase receipt and product model number available.
9. About LSE Lighting
LSE Lighting is an EPA Registered Establishment (Est. No. 96823-PA-1) known for producing high-quality UV-C replacement bulbs. They specialize in UV light technology for air, surface, and water sterilization applications.
Video: An introduction to LSE Lighting, showcasing their commitment to UV light technology and quality products.