Introduction
Thank you for choosing the BLS 48 LED Motion Sensor Closet Light, Model T401. This wireless, rechargeable light provides bright, clean white illumination (6000K) with intelligent motion sensing capabilities. Designed for versatile use in various indoor spaces, it features a large 4500mAh battery for extended operation and multiple installation options for convenience.

Image: The BLS 48 LED Motion Sensor Closet Light, showcasing its key features: 200 lumens, motion sensor with Constant-Sense technology, up to 180 days run time, and built-in strong magnets for easy installation.
Setup
1. Unpacking and Initial Charge
Carefully remove the light and all accessories from the packaging. Before first use, fully charge the device. Connect the provided USB cable to the light's charging port and to a standard USB power adapter (not included). The charging indicator light will show the charging status (e.g., red for charging, green for fully charged).
2. Installation Options
The BLS LED Closet Light offers flexible installation methods:
- Magnetic Attachment: The light has built-in strong magnets, allowing it to be directly attached to any iron surface without additional hardware.
- Adhesive Tape: For non-metallic surfaces, use the included 3M adhesive tape. Attach the metal mounting brackets to your desired surface using the adhesive tape, then magnetically attach the light to the brackets.
- Screw Mounting: For a more permanent installation, use the included screws to secure the metal mounting brackets to the surface, then magnetically attach the light.
No hard wiring is required, making installation and removal simple.

Image: Step-by-step guide illustrating the installation process, including screw mounting, adhesive tape application, magnetic attachment, and an example of the light installed under a cabinet.
Video: An official BLS LED video demonstrating the features and installation of the battery-powered light, highlighting its 4000mAh rechargeable battery and magnetic mounting.
Operating Instructions
1. Mode Selection
The light features a sliding switch with three modes: ON, OFF, and AUTO.
- ON Mode: The light will remain continuously on, regardless of motion or ambient light conditions.
- OFF Mode: The light will remain off.
- AUTO Mode: The motion sensor is activated. The light will turn on automatically when motion is detected in dark or low-light environments.
2. Motion Sensor Functionality (AUTO Mode)
In AUTO mode, the light utilizes Constant-Sense technology. It will:
- Automatically turn on when motion is sensed in dark or low ambient light conditions.
- Remain on as long as continuous motion is detected nearby.
- Automatically turn off approximately 18 seconds after motion ceases.
The sensitivity of the motion sensor can be adjusted by rotating the light itself. This allows for optimization of the lighting effect and helps prevent glare, ensuring comfortable illumination.

Image: Detailed view of the light's features, including its dimensions (15.1"L x 0.9"W), USB-C charging port, 3-way switch, and motion sensor. It also illustrates the 120-degree motion detection range and the 18-second auto-off function.
Maintenance
1. Charging the Battery
The BLS LED Closet Light is equipped with a 4500mAh UL-certified rechargeable battery. When the light dims or stops responding, it indicates a low battery and requires recharging. Use the provided USB cable to connect the light to a power source. A full charge provides up to 10 hours of continuous brightness or up to 180 days of standby in Motion Sensor Mode (based on 10 triggers per day).

Image: A visual comparison highlighting the BLS light's superior 4500mAh rechargeable battery, offering up to 180 days of run time, compared to other lights with smaller batteries that require more frequent charging.
2. Cleaning
To clean the light, gently wipe the surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these may damage the finish or electronic components. Ensure the light is in the OFF position before cleaning.
Troubleshooting
- Light does not turn on:
- Ensure the light is fully charged.
- Check the mode switch; it should be in the 'ON' or 'AUTO' position.
- In 'AUTO' mode, verify that the ambient light is low enough for the sensor to activate.
- Motion sensor not working or inconsistent:
- Confirm the light is in 'AUTO' mode.
- Adjust the angle of the light to optimize sensor detection.
- Ensure there are no obstructions blocking the sensor.
- Check for strong light sources near the sensor that might prevent activation in 'AUTO' mode.
- Light is dim:
- The battery may be low. Recharge the light fully.
If you encounter persistent issues, please refer to the Warranty and Support section for assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | BLS |
| Model Number | T401-2Pack |
| Light Source | LED |
| Number of Light Sources | 48 |
| Brightness | 200 Lumens |
| Color Temperature | 6000 Kelvin (Clean White) |
| Power Source | 4500mAh Rechargeable Battery |
| Voltage | 3.65 volts |
| Wattage | 2.1 watts |
| Material | Acrylonitrile Butadiene Styrene, Aluminum |
| Item Dimensions (L x W x H) | 15.08" x 0.98" x 0.98" |
| Item Weight | 1 pound |
| Control Method | Sliding Switch (ON/OFF/AUTO) |
| Mounting Type | Magnetic, Adhesive, Screw |
| Indoor Outdoor Usage | Indoor |
Warranty and Support
BLS provides an 18-month quality assurance warranty for this product. We are committed to providing 100% satisfactory after-sales service and lifelong technical support. If you have any questions, concerns, or require assistance with your BLS LED Closet Light, please contact our customer support team.
For support, please refer to the contact information provided with your product packaging or visit the official BLS website.