Introduction
The MagLite ST3D016 LED 3-Cell D Flashlight is a durable and reliable lighting instrument designed for various uses. It features advanced LED technology for efficient power consumption and a powerful, adjustable beam. Constructed from high-strength aluminum alloy, it offers water and shock resistance, making it suitable for diverse environments.

The MagLite ST3D016 LED 3-Cell D Flashlight in black, showcasing its robust aluminum construction and knurled grip.
Setup - Battery Installation
The MagLite ST3D016 requires three D-cell batteries (not included). Follow these steps for proper installation:
- Unscrew the tail cap by rotating it counter-clockwise.
- Remove the spring and any existing batteries.
- Insert the new D-cell batteries with the positive (+) end facing towards the head of the flashlight (towards the bulb).
- Replace the spring and screw the tail cap back on clockwise until secure. Ensure the O-ring is properly seated to maintain water resistance.
This video demonstrates the battery installation process for the MagLite LED 3-Cell D Flashlight, showing how to insert three D-cell batteries with the positive end facing down, and how to adjust the beam from spot to flood.
Operating Instructions
- Power On/Off: Press the rubber button located on the side of the flashlight to turn the light on or off.
- Beam Adjustment: Rotate the head of the flashlight clockwise or counter-clockwise to adjust the beam from a wide flood to a concentrated spot.
Watch this video for a demonstration of the MagLite LED 3-Cell D Flashlight's adjustable beam, showcasing its ability to switch between a wide floodlight and a focused spot beam, along with its performance in an outdoor, dark environment.
Maintenance
- Battery Replacement: Follow the battery installation steps outlined in the 'Setup' section when replacing depleted batteries.
- Cleaning: Wipe the exterior of the flashlight with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- O-Ring Care: Periodically inspect the O-rings for wear and tear. Ensure they are clean and properly seated to maintain the flashlight's water resistance.
This video illustrates the simple process of replacing the D-cell batteries in the MagLite LED 3-Cell D Flashlight and emphasizes the flashlight's robust construction and long-term reliability.
Specifications
| Feature | Detail |
|---|---|
| Brand | MagLite |
| Model | ST3D016 (GIDDS2-131366) |
| Item Weight | 15 ounces |
| Product Dimensions | 12.34 x 1.56 x 2.25 inches |
| Material | Aluminum |
| Power Source | Battery-Powered |
| Batteries Required | 3 D batteries (not included) |
| Lumens | 168 |
| Beam Distance | 412 meters |
| Run Time | Up to 80 hours |
| Water Resistance | IPX4 |
| Drop Resistance | 1 meter |

Performance metrics according to FL1 Standard, including 412m beam distance, 168 lumens, 42533cd peak beam intensity, water resistance, 1m drop resistance, and 80h run time.
Warranty and Support
The MagLite ST3D016 LED 3-Cell D Flashlight comes with a limited lifetime warranty. For warranty claims or customer support, please refer to the contact information provided in the product packaging or visit the official MagLite website.





