1. Introduction
This manual provides instructions for the installation, operation, maintenance, and troubleshooting of the Sendextra AP-UVC1 UV-C replacement bulbs. These bulbs are designed for use with specified Homedics air purifier models to maintain optimal air purification performance.

Image 1.1: Two Sendextra AP-UVC1 UV-C replacement bulbs.

Image 1.2: Compatibility overview for Sendextra UV-C bulbs with various Homedics air purifier models.
2. Product Overview
The Sendextra AP-UVC1 UV-C bulb is a 3-watt replacement component designed to emit ultraviolet-C light. This UV-C technology is integral to the air purification process in compatible Homedics models, contributing to the reduction of airborne contaminants.

Image 2.1: Illustration of the UV-C bulb's role within an air purification system, alongside various filter types.

Image 2.2: Scientific diagram illustrating the UV-C light spectrum and its peak germicidal efficiency at 264 nanometers.
3. Installation Instructions
Follow these steps to replace the UV-C bulb in your Homedics air purifier. The UV-C button on the control panel will flash red when a replacement is needed.

Image 3.1: Visual guide for UV-C bulb replacement.
- Unplug the Air Purifier: Ensure the air purifier is completely disconnected from the power source before beginning any maintenance.
- Remove Grille Cover and Filter: Carefully remove the outer grille cover and any filters to access the internal components.
- Unscrew UV-C Bulb Cover: Locate the UV-C bulb cover, typically secured by two screws. Use a screwdriver to remove these screws.
- Remove Light Cover: Detach the light cover to expose the UV-C bulb.
- Replace Old Bulb: Gently push from the sides and rotate the old UV-C bulb to remove it. Insert the new Sendextra AP-UVC1 bulb, ensuring it is securely seated.
- Reassemble: Reattach the light cover, secure the UV-C bulb cover with its screws, and replace the filters and outer grille cover.
- Reset UV-C Indicator: After replacing the bulb and powering the air purifier back on, the UV-C indicator light may still be red. To reset it, press and hold the UV-C button on the control panel for approximately 3-5 seconds until you hear a beep or the light changes to blue.
4. Operation
Once installed, the Sendextra AP-UVC1 UV-C bulb operates automatically when the air purifier is powered on and the UV-C function is activated. The UV-C indicator light on your air purifier's control panel will illuminate blue to confirm active operation.
5. Maintenance
The Sendextra AP-UVC1 UV-C bulb is designed for a lifespan of approximately 10,000 hours of use. It is recommended to replace the bulb when the UV-C indicator light on your air purifier begins to flash red, signaling the end of its effective life. Regular replacement ensures continuous optimal performance of your air purifier's UV-C function.
6. Troubleshooting
- UV-C Indicator Light Remains Red After Replacement: If the UV-C indicator light does not turn blue after installing a new bulb, it needs to be manually reset. Press and hold the UV-C button on the air purifier's control panel for 3-5 seconds until the light changes color or a beep is heard.
- Bulb Not Illuminating: Ensure the bulb is correctly seated in its socket and that the air purifier is properly plugged in and powered on. If the issue persists after resetting the indicator, contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | AP-UVC1 |
| Wattage | 3 Watts |
| Bulb Type | UV-C (CFL) |
| Bulb Base | G5 |
| Bulb Shape Size | T3 |
| Dimensions | 0.3"W x 4.5"H |
| Average Life | 10,000 Hours |
| Voltage | 100-120 Volts |
| Frequency | 60 Hertz |
| Material | Glass, Plastic |
| Included Components | 2x Bulbs |
8. Support
Sendextra offers lifetime support for its products. If you have any questions, encounter problems with your bulbs, or require assistance at any time, please do not hesitate to contact our customer support team. We are available to help ensure your satisfaction and the proper functioning of your product.
For support inquiries, please refer to the contact information provided with your product packaging or visit the official Sendextra website.