1. Introduction
This manual provides instructions for the safe and effective use of your Knizen UV Light Sanitizer Box, Model S2. This device is designed to disinfect various personal items using UVC LED technology. Please read this manual thoroughly before operating the device and retain it for future reference.
2. Safety Information
- Eye and Skin Protection: The device is equipped with a safety mechanism that automatically turns off the UV lights if the cover is opened during operation. Do not attempt to bypass this safety feature. Direct exposure to UVC light can be harmful to eyes and skin.
- Intended Use: Use this device only for its intended purpose of sanitizing small personal items as described in this manual.
- Power Source: Connect the device only to a power source specified in the specifications section.
- Liquid Contact: Do not immerse the device in water or other liquids. Avoid placing wet items inside the box.
- Children: Keep the device out of reach of children.
- Damage: Do not operate the device if it is damaged. Contact customer service for assistance.
3. Product Overview
The Knizen UV Light Sanitizer Box S2 utilizes 8 UVC LED beads to provide efficient disinfection. It features a reflective interior to ensure comprehensive 360-degree exposure to UVC light for items placed inside. The device is designed for ease of use and safety.
Key Features:
- UVC LED Technology: Employs 8 UV-C LED beads with a wavelength of 260nm-280nm.
- Rapid Disinfection: Completes a disinfection cycle in approximately 3 minutes.
- Long Lifespan: UVC LED beads have an estimated lifespan of 10,000 hours.
- Safety Auto-Off: UV lights automatically deactivate if the lid is opened during operation.
- 360-Degree Coverage: Reflective glass at the bottom enhances UVC exposure from all angles.
- Versatile Use: Suitable for smartphones, glasses, jewelry, keys, beauty instruments, and other small household items.
Product Components:

Image: The Knizen UV Light Sanitizer Box S2 with its lid open, showing a smartphone placed inside the disinfection chamber. The internal UVC LEDs are visible on the underside of the lid.

Image: A diagram illustrating the comprehensive 360-degree UVC disinfection process. It highlights the UVC diodes, the reflective interior, and a holder for items, all contributing to thorough sanitization.
4. Setup
- Unpack: Carefully remove the Knizen UV Light Sanitizer Box S2 from its packaging.
- Placement: Place the device on a stable, flat surface away from direct sunlight and heat sources.
- Connect Power: Plug the provided power adapter into the device's power port, then plug the adapter into a standard electrical outlet.
- Ready for Use: The device is now ready for operation.
5. Operating Instructions
The Knizen UV Light Sanitizer Box S2 is designed for simple, one-touch operation.
- Open Lid: Gently open the lid of the sanitizer box.
- Place Items: Place the items you wish to disinfect inside the box. Ensure items are not overlapping excessively to allow for maximum UVC exposure. The box is compatible with items such as smartphones, keys, jewelry, and glasses.

Image: An open Knizen S2 sanitizer box with a smartphone inside, surrounded by other items like glasses, wireless earbuds, and a credit card, demonstrating the variety of objects that can be disinfected.
- Close Lid: Close the lid securely. The device will not operate if the lid is not fully closed.
- Start Cycle: Press the power/start button on the top of the device. The UVC LEDs will illuminate, indicating the start of the disinfection cycle.
- Disinfection Process: The standard disinfection cycle lasts approximately 3 minutes.
- Cycle Completion: The device will indicate completion of the cycle (e.g., a sound or light indicator, refer to device for specific signal).
- Remove Items: Open the lid and carefully remove your disinfected items.

Image: A visual comparison demonstrating the advantage of 8 UVC diodes in the current model, which achieves disinfection in 3 minutes, versus older models with 2 UVC diodes that required 6 minutes.
6. Maintenance
Regular cleaning helps maintain the performance and longevity of your sanitizer box.
- Exterior Cleaning: Wipe the exterior of the device with a soft, dry, or slightly damp cloth. Do not use abrasive cleaners or solvents.
- Interior Cleaning: For the interior, use a soft, dry cloth to gently wipe surfaces. Ensure no liquids enter the UVC LED components.
- Storage: When not in use, store the device in a cool, dry place away from direct sunlight.
7. Troubleshooting
If you encounter issues with your Knizen UV Light Sanitizer Box S2, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Not plugged in; power outlet issue; damaged power cord. | Ensure power cord is securely plugged into both the device and a working electrical outlet. Check the power outlet with another device. If the cord is damaged, discontinue use and contact support. |
| Disinfection cycle does not start. | Lid not fully closed; safety sensor activated. | Ensure the lid is completely closed. The device will not operate if the safety sensor detects the lid is open. |
| Device makes a continuous beeping sound. | Indication of cycle completion or an alert. | Refer to the specific device indicators for beeping patterns. This may signal the end of a disinfection cycle. If persistent and not indicating completion, contact support. |
| Concern about UVC effectiveness. | Uncertainty about UVC output. | The Knizen S2 uses UVC LED technology and is registered with EPA Est. No.95175-CHN-1, indicating compliance with regulatory standards for UVC devices. Ensure proper placement of items for optimal exposure. |
8. Specifications
| Model Number | S2 |
| Brand | Knizen |
| Product Dimensions | 8.5"L x 4"W x 2.8"H |
| Item Weight | 14.4 Ounces |
| Light Source Type | Light Emitting Diode (UVC LED) |
| Number of Light Sources | 8 |
| Voltage | 10 Volts |
| Wattage | 7 Watts |
| Power Source | Corded Electric |
| Material | Glass (for reflective interior) |
| Bulb Features | Safety Auto-Off, No Radiation, No Residue |
| EPA Est. No. | 95175-CHN-1 |
| First Available | April 26, 2021 |
9. Warranty and Support
Knizen is committed to providing quality products. If you have any quality concerns or require technical assistance with your UV Light Sanitizer Box S2, please contact our customer service team. While specific warranty details are not provided in this manual, our support team is available to assist you with product inquiries and troubleshooting.