1. Introduction
Thank you for choosing the US Army Aluminum Tactical COB Flashlight. This manual provides essential information for the safe and effective use of your new flashlight. Designed for durability and powerful illumination, this flashlight is suitable for various applications, from outdoor adventures to emergency situations and everyday home use. Please read this manual thoroughly before operation.

Image 1.1: The US Army Aluminum Tactical COB Flashlight, showcasing its robust black aluminum body and powerful lens.
2. Product Features
- High Lumens Output: Provides 4000 lumens of bright illumination.
- Durable Construction: Crafted from military-grade aluminum for rugged performance and splash-proof reliability.
- Versatile Beam Modes: Features three distinct lighting modes: High, Low, and Strobe.
- Focusing & Zoomable Beam: Adjustable beam allows for wide floodlight or narrow spotlight illumination.
- Battery Powered: Operates on 9 AA alkaline batteries (included).
- Compact Design: Measures 5.91"D x 2.48"W x 12.72"H, offering a balance of power and portability.

Image 2.1: Illustration highlighting the flashlight's three beam modes (High, Low, Strobe) and its power source of 9 AA batteries, emphasizing its robust design for challenging environments.

Image 2.2: Visual representation of key features including splash-proof design, inclusion of 9 AA batteries, and super bright illumination, set against a background of the flashlight in use.
3. Setup
3.1 Battery Installation
Your flashlight requires 9 AA alkaline batteries for operation. The battery adapter is designed for easy installation.
- Unscrew the tail cap of the flashlight by turning it counter-clockwise.
- Insert the 9 AA batteries into the provided battery adapter, ensuring correct polarity (+/-) as indicated on the adapter. The adapter is designed to be inserted in either direction into the flashlight body.
- Carefully slide the battery adapter with batteries into the flashlight body.
- Screw the tail cap back on by turning it clockwise until it is securely tightened.
Important: Ensure the tail cap is fully tightened to maintain splash-proof integrity and proper electrical contact.
4. Operating Instructions
4.1 Power On/Off
To turn the flashlight ON or OFF, firmly press the button located on the tail cap.
4.2 Changing Beam Modes
The flashlight features three beam modes: High, Low, and Strobe. To cycle through these modes:
- With the flashlight ON, gently half-press the tail cap button (without clicking it off) to advance to the next mode.
- Alternatively, quickly turn the flashlight OFF and then ON again to switch modes.
4.3 Focusing and Zooming the Beam
The flashlight features an adjustable beam for various lighting needs:
- To adjust the beam from a wide floodlight to a narrow spotlight, rotate the front head of the flashlight clockwise or counter-clockwise.
- Turn the head in one direction for a wider, more diffused light, ideal for illuminating a large area.
- Turn the head in the opposite direction for a concentrated, narrow beam that reaches further distances.
5. Maintenance
5.1 Cleaning
- Wipe the flashlight body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Keep the lens clean for optimal light output. Use a lens cleaning cloth if necessary.
5.2 Battery Care
- Replace all 9 AA batteries simultaneously when the light dims significantly. Do not mix old and new batteries or different battery types.
- If the flashlight will not be used for an extended period (e.g., more than one month), remove the batteries to prevent leakage and potential damage to the flashlight.
- Dispose of used batteries responsibly according to local regulations.
5.3 Storage
Store the flashlight in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. | Dead or incorrectly installed batteries. | Check battery polarity. Replace all 9 AA batteries with new ones. |
| Light is dim or flickers. | Low battery power. Loose tail cap. | Replace batteries. Ensure tail cap is fully tightened. |
| Cannot change beam modes. | Button not being half-pressed correctly or quick enough. | Practice half-pressing the tail cap button or try the quick ON/OFF method. |
| Beam does not focus/zoom. | Head mechanism might be stiff. | Gently twist the head of the flashlight. Avoid forcing it. |
7. Specifications

Image 7.1: Detailed view of the flashlight, illustrating its dimensions (5.91 inches length, 2.48 inches width) and highlighting its military-grade aluminum construction, powerful illumination, and durable design.
| Feature | Detail |
|---|---|
| Model Number | 53773-US |
| Light Source Type | LED |
| Brightness | 4000 Lumens |
| Beam Modes | High, Low, Strobe |
| Special Features | Focusing Beam, Splash Proof |
| Power Source | Battery Powered (9 AA Alkaline batteries) |
| Material | Aluminum |
| Color | Black |
| Product Dimensions | 5.91"D x 2.48"W x 12.72"H |
| Item Weight | 1.23 pounds |
| UPC | 810164714145 |





