Introduction
Welcome to your new GearLight S100 LED Pocket Pen Light. This manual provides essential instructions for the safe and effective use, maintenance, and troubleshooting of your device. Please read this manual thoroughly before operating the flashlight and retain it for future reference.
Important Safety Information
- Do not look directly into the LED light. The intense light can cause temporary vision impairment or eye damage.
- Keep this product out of reach of children.
- Do not mix old and new batteries.
- Do not mix alkaline, standard (carbon-zinc), or rechargeable (nickel-cadmium) batteries.
- Remove batteries if the device is not used for an extended period to prevent battery leakage and damage.
- Dispose of used batteries properly according to local regulations.
Package Contents
Upon opening your package, please verify that all items listed below are present:
- 2x GearLight S100 LED Pocket Pen Lights
- 2x Removable Pocket Clips (pre-attached)
- 1x Warranty Card
Note: AAA batteries are not included and must be purchased separately.
Product Overview
The GearLight S100 LED Pocket Pen Light is designed for portability and durability, featuring a compact form factor and robust construction.

Image: The GearLight S100 LED Pocket Pen Light held in a hand, illustrating its compact size of 5 1/4 inches.
- Compact Design: Measures 5.25 inches in length, ideal for tight spaces.
- Durable Construction: Made from military-grade aluminum.
- Removable Pocket Clip: For easy attachment to clothing or gear.
- Non-Slip Grip: Ensures secure handling.
Setup
Battery Installation
Your GearLight S100 requires two (2) AAA batteries for operation. Follow these steps to install them:
- Unscrew the tail cap of the flashlight by turning it counter-clockwise.
- Insert two (2) AAA batteries into the battery compartment. Ensure correct polarity: the positive (+) end of the battery should face towards the head of the flashlight.
- Screw the tail cap back on clockwise until it is securely tightened.

Image: Visual reminder that 2 AAA batteries are needed for the flashlight, and they are not supplied with the product.
Operating Instructions
Turning On/Off
The GearLight S100 LED Pocket Pen Light features a simple mechanical tail switch for operation:
- To turn the flashlight ON, firmly press the button on the tail cap until you hear a click.
- To turn the flashlight OFF, firmly press the button on the tail cap again until you hear a click.

Image: A person using the GearLight S100 LED Pocket Pen Light in a dark environment, highlighting its 100-lumen output and simple mechanical switch operation.
Maintenance
Care and Storage
- Cleaning: Wipe the flashlight with a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these may damage the finish.
- Battery Replacement: Replace batteries when the light output diminishes. Always replace both batteries at the same time to ensure optimal performance.
- Storage: Store the flashlight in a cool, dry place. If storing for an extended period (more than a month), remove the batteries to prevent potential leakage and corrosion.
- Water Resistance: The flashlight is IPX4 rated, meaning it is resistant to splashing water from any direction. It is not designed for submersion in water.

Image: The GearLight S100 LED Pocket Pen Light being held under splashing water, demonstrating its IPX4 water resistance.
Troubleshooting
Common Issues and Solutions
| Problem | Solution |
|---|---|
| Flashlight does not turn on. |
|
| Light is dim or flickers. |
|
Specifications
Technical Details
- Brand: GearLight
- Model: S100
- Light Source: LED
- Brightness: 100 Lumens
- Power Source: 2x AAA Batteries (not included)
- Material: Aluminum
- Product Dimensions: 5.25"D x 0.5"W x 0.5"H
- Item Weight: 1 ounce (without batteries)
- Water Resistance: IPX4 Rated (resistant to splashing water)
- Special Features: Non-slip grip, Removable Pocket Clip
Note: Specifications are subject to change without prior notice.
Warranty and Support
Warranty Information
GearLight products are backed by a manufacturer's warranty. Please refer to the included Warranty Card for specific terms, conditions, and duration of your product's warranty.
Customer Support
For any questions, technical assistance, or to initiate a warranty claim, please contact GearLight customer support. Contact details can typically be found on the warranty card or by visiting the official GearLight website. Please have your product model (S100) and purchase information ready when contacting support.





