Introduction
This manual provides instructions for the safe and efficient use of your CORE 100 Lumen LED Tent Light Lantern. This versatile lantern is designed for various outdoor and indoor lighting needs, including camping, fishing, outdoor activities, automotive use, power outages, and emergency situations.

Image: Front view of the CORE 100 Lumen LED Tent Light Lantern.
Safety Information
Please read all safety instructions before using the lantern to ensure proper operation and to prevent injury or damage.
- Battery Safety:
- Always insert batteries correctly, observing polarity (+/-) markings.
- Do not mix old and new batteries, or different types of batteries.
- Remove batteries if the device will not be used for an extended period to prevent leakage and corrosion.
- Dispose of used batteries responsibly according to local regulations.
- General Use:
- Do not look directly into the LED light when it is on, as it may cause temporary eye strain or discomfort.
- Keep out of reach of small children to prevent choking hazards from small parts or battery ingestion.
- Ensure the battery compartment is securely closed to maintain the lantern's water resistance.
- Do not attempt to disassemble or modify the lantern, as this will void the warranty and may cause damage.
Package Contents
Verify that all items listed below are included in your package:
- 1 x CORE 100 Lumen LED Tent Light Lantern
- 3 x AA Batteries
- 1 x Instruction Manual
Setup: Battery Installation
The CORE 100 Lumen LED Tent Light Lantern requires 3 AA batteries for operation. These batteries are included with your purchase.
- Locate the battery compartment cover on the back of the lantern.
- Twist the cover counter-clockwise to unlock and remove it.
- Insert 3 AA batteries into the compartment, ensuring correct polarity (+/-) as indicated inside.
- Replace the cover and twist clockwise to securely lock it into place.

Image: Back view of the lantern, indicating the battery compartment.
Operating Instructions
The lantern features three distinct power settings: High, Low, and Nightlight. These modes are controlled by a single power button.
- Power Button: The central button on the front of the lantern controls all functions.
- To Turn On: Press the power button once to activate High mode.
- To Cycle Modes: Press the power button repeatedly to cycle through the available lighting modes.
- Mode Sequence: High > Low > Nightlight > Off

Image: The lantern with its central power button.
Features
The CORE 100 Lumen LED Tent Light Lantern is designed with several features to enhance your lighting experience:
- Multiple Lighting Modes: Choose between High (100 Lumens), Low (17 Lumens), and Nightlight (1 Lumen) to suit your specific illumination needs and conserve battery life.
- Versatile Design:
- An integrated hanging hook allows for easy suspension from tent ceilings, branches, or other overhead structures.
- A fold-out stand provides stable tabletop illumination, perfect for picnic tables or flat surfaces.
- Durability:
- The lantern complies with ANSI IPX4 water resistance standards, making it suitable for use in various weather conditions.
- Impact-resistant construction ensures resilience against accidental drops and bumps.
- Equipped with lifetime LED bulbs, eliminating the need for bulb replacement.
- Compact and Portable: Its lightweight and compact design makes it easy to pack and carry for any adventure.



Image: Size comparison of the lantern, demonstrating its compact form factor.
Maintenance
Proper maintenance will ensure the longevity and optimal performance of your lantern.
- Cleaning: Wipe the exterior of the lantern with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or internal components.
- Storage: Store the lantern in a cool, dry place away from direct sunlight and extreme temperatures. For long-term storage (more than a few weeks), remove the batteries to prevent potential leakage and damage to the device.
- Battery Replacement: When the light dims significantly or stops functioning, replace all 3 AA batteries simultaneously with new ones. Do not mix old and new batteries.
Troubleshooting
If you encounter any issues with your CORE 100 Lumen LED Tent Light Lantern, please refer to the following common problems and solutions:
- Light does not turn on:
- Check if batteries are inserted correctly with proper polarity (+/-).
- Ensure batteries are fresh and not depleted. Replace if necessary.
- Verify the battery compartment cover is securely closed and twisted to the locked position.
- Light is dim:
- Batteries may be low; replace all 3 AA batteries with new ones.
- Ensure the lantern is not currently set to Low or Nightlight mode. Press the power button to cycle through modes.
- Water ingress:
- Ensure the battery compartment cover is fully sealed and properly tightened.
- If water has entered, remove batteries immediately and allow the unit to dry completely before attempting to use again.
If issues persist after attempting these solutions, please contact customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | CORE |
| Model Number | 40028 |
| Light Source Type | LED |
| Brightness (High) | 100 Lumens |
| Brightness (Low) | 17 Lumens |
| Brightness (Nightlight) | 1 Lumen |
| Power Source | Battery Powered |
| Battery Type | 3 x AA (included) |
| Battery Life (High) | 10 Hours |
| Battery Life (Low) | 150 Hours |
| Battery Life (Nightlight) | 153 Hours |
| Water Resistance Level | IPX4 (Water Resistant) |
| Material | Metal (internal components), Durable Plastic (housing) |
| Item Dimensions (L x W x H) | 4.3" x 4.3" x 1.4" |
| Item Weight | 0.1 Kilograms |

Image: Detailed specifications including lumen output, battery life, and beam distance for each mode.
Warranty and Support
This CORE product is covered by a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, replacement parts, or any other inquiries, please visit the official CORE website or contact their customer service department directly.
Online Support: For additional information and support, you can visit the CORE Store on Amazon.

