1. Introduction
Thank you for choosing the Mr Beams MB720 Wireless Motion Sensing Nightlight. This manual provides important information regarding the installation, operation, and maintenance of your new nightlight. Please read it thoroughly before use and retain it for future reference.
Product Overview
The Mr Beams MB720 is a highly efficient, battery-powered LED nightlight designed for automatic illumination in various indoor and outdoor settings. It features a motion sensor that activates the light only when motion is detected in darkness, conserving battery life. Its weatherproof design allows for versatile placement.
Package Contents
- Mr Beams MB720 Nightlight(s)
- Mounting Hardware & Anchors
- Adhesive Strip
- User Manual (this document)

Figure 1: Mr Beams MB720 Wireless Motion Sensing Nightlights (3-Pack shown).
2. Setup and Installation
2.1 Battery Installation
- Locate the battery compartment cover on the back of the nightlight.
- Remove the cover by sliding or unscrewing it (refer to the diagram on the device if unsure).
- Insert the required number of AA batteries (not included), ensuring correct polarity (+/-) as indicated inside the compartment.
- Replace the battery compartment cover securely.
2.2 Mounting Options
The MB720 nightlight offers flexible mounting options:
Adhesive Mounting (Temporary/Non-Damaging)
- Clean the desired mounting surface thoroughly to ensure it is free of dust and grease.
- Peel the protective backing from one side of the included adhesive strip.
- Apply the adhesive strip firmly to the back of the nightlight.
- Peel the remaining protective backing from the adhesive strip.
- Press the nightlight firmly onto the cleaned surface for at least 30 seconds.
Screw Mounting (Permanent/Secure)
- Choose a suitable mounting location.
- Use the included mounting bracket as a template to mark the screw holes on the surface.
- Drill pilot holes if necessary, especially for drywall or masonry, and insert the provided anchors.
- Secure the mounting bracket to the surface using the provided screws.
- Slide the nightlight onto the mounting bracket until it clicks securely into place.

Figure 2: Approximate dimensions of the MB720 nightlight, useful for placement planning.
3. Operating Instructions
The Mr Beams MB720 nightlight is designed for automatic, hands-free operation.
Motion Sensing Activation
- The integrated motion sensor detects movement within a range of up to 10 feet and an angle of 120 degrees.
- The light will only activate when motion is detected in a dark environment. This feature conserves battery life by preventing activation during daylight hours.
Automatic Shut-Off
Once activated, the light will remain on as long as motion is continuously detected. If no motion is detected for approximately 30 seconds, the light will automatically turn off to save power.
Note: For optimal performance, ensure the motion sensor is not obstructed and is positioned to cover the desired detection area.
4. Maintenance
Battery Replacement
When the light output diminishes or the light fails to activate, it is time to replace the batteries. Follow the battery installation steps outlined in Section 2.1. Always replace all batteries with new ones of the same type and brand for best performance.
Cleaning
To clean the nightlight, gently wipe the surface with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these may damage the unit. Ensure the light is dry before re-installation or use.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. |
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| Light stays on continuously. |
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| Light is dim. |
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6. Specifications
| Luminous Flux | 20 Lumens |
| Light Color Temperature | 4000K |
| Lighting Modes | Motion Activated |
| Motion Angle of Detection | 120° |
| Motion Range | Up to 15 ft. |
| Auto Shut Off | 30 Seconds |
| Power | Battery (not included) |
| Operating Conditions | 0 - 131°F |
| Mounting | Wall or Stand |
| Weatherproof Rating | IPX4 |
| Unit Dimensions | 3.86 x 3.39 x 1.14 Inches |
| Unit Weight | 0.31 Pounds |
7. Warranty and Support
Warranty Information
All Mr Beams products are guaranteed against defects in workmanship and materials for 1 year from purchase. Use of Mr Beams lights is subject to the terms found here.
Product Support
For more information or assistance, please visit the official Mr Beams product support page. Click here to view more information on the Beams product support page.
(Note: Specific links for warranty terms and support page are placeholders as they were not provided in the JSON. In a real scenario, these would be replaced with actual URLs.)





