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Klarus GL3 Rail-Mounted Light – 2100 Lumens, USB-C

$99.95

Built for real-world use
✓ Free shipping on all orders
✓ 30-day hassle-free returns
✓ Warranty on every product
✓ Ships fast from the US

  • 2100 Lumens Max Brightness - 747 Ft Beam Throw
  • 6 modes - moonlight, low, medium, high, strobe, SOS
  • USB-C rechargeable with 3100mAh battery
  • Dual tailcap switches with MODE and TACTICAL controls

FAQS
  • What rail systems is the Klarus GL3 compatible with?
    The GL3 mounts directly to M-LOK rails and is compatible with Picatinny rails when using an adapter.
  • How is the light controlled?
    It uses dual rear switches for fast activation and easy cycling through output modes.
  • How long does the battery last?
    Runtime can reach up to 150 hours on the lowest setting, depending on mode and usage.
  • How is the GL3 charged?
    It charges via USB-C using the included rechargeable battery.
  • Can I use disposable batteries?
    Yes. The GL3 supports either the included rechargeable battery or 2 × CR123A batteries.
  • Is the GL3 weather resistant?
    Yes. It is rated IPX6 for resistance to heavy rain and splashes.

Full Specifications

Maximum Output: 2100 lumens
Beam Distance: Up to 787 ft
Battery: 3100mAh rechargeable lithium ion or 2 x CR123A
Charging: USB C
Runtime: Up to 150 hours on low mode
Modes: Turbo, High, Medium, Low, Strobe, SOS
Rail Compatibility: M LOK included, Picatinny adapter required
Water Resistance: IPX6

Best Uses & Real-World Applications

  • Rail-mounted tactical lighting
    High-output illumination for rail-equipped platforms requiring powerful, stable lighting.
  • Duty & professional use
    Designed for environments where fast mounting, strong output, and durability are required.
  • Outdoor & equipment lighting
    Ideal for night operations and low-light tasks where rail-mounted illumination is preferred.

Shipping Info

Orders typically ship within 24 hours (excluding holidays)

Description

For the user who wants maximum output and quick-detach versatility in a rail-mounted package. The Klarus GL3 delivers 2,100 lumens with a 240-meter beam through a quick-detach mount system, USB-C charging, and a dual-switch interface. Built for hard use, easy transitions, and reliable performance under pressure.

✓ Authorized Klarus dealer ✓ Ships from Florida in 24 hours ✓ Free shipping on orders $49+

Klarus GL3 USB-C Rechargeable Rail-Mounted Light

High-Output Tactical Illumination

The GL3 delivers 2,100 lumens with a 240-meter beam, putting it among the top performers in the rail-mounted category. The focused beam profile prioritizes distance and clarity for threat identification, perimeter checks, and search operations where reach matters.

Quick-Detach Mount System

Tool-free quick-detach mounting allows fast attachment and removal from standard Picatinny rails. Switch the GL3 between platforms in seconds without losing zero on accessories.

Dual-Switch Tactical Operation

  • Tail switch — momentary and constant-on light operation
  • Side switch — mode cycling and lockout
  • Strobe — disorientation and signaling
  • Lockout mode — prevents accidental activation during transport

USB-C Rechargeable Built-In Battery

Charges via USB-C from any standard cable. The integrated battery delivers consistent runtime across all output levels, eliminating the need for disposable CR123A batteries.

Built for Hard Use

Aircraft-grade aluminum body with hard-anodized finish, IPX-rated water resistance, and impact resistance for hard-use environments. The strike bezel adds defensive capability in close-quarters scenarios.

Who the GL3 Is For

The GL3 is built for trained users who want maximum output in a rail-mounted platform with the convenience of USB-C charging and quick-detach mounting — duty professionals, range users, and prepared citizens who value high-performance equipment.

Backed by Klarus's manufacturer warranty and our simple 30-day return policy.

Frequently asked questions

Is this a genuine product with a valid warranty?

Yes. We are an authorized dealer for Klarus and TrustFire, so every light we ship is genuine and carries the full manufacturer warranty, handled by us. Flashlights bought through unauthorized or grey-market sellers are usually not covered.

How fast do you ship, and what does it cost?

Orders placed on business days leave our Port Charlotte, Florida warehouse within 24 hours. Shipping is free on US orders over $49. We hold our own stock, so if the site shows it in stock, it is on a shelf here.

What is your return policy?

Returns are accepted within 30 days through a simple return process. See our refund policy for full details, or email us first if you are unsure whether a light is the right one and we will help you decide before you buy.

How many lumens do I actually need?

More than most people expect to hear: usually fewer than you think. 200 to 500 lumens covers everyday tasks, 500 to 1,500 covers work and duty use, and above that you are buying reach rather than usable working light. Runtime drops sharply at maximum output on every light ever made.

What is the difference between lumens and beam distance?

Lumens measure total light output. Candela measures beam intensity, and that is what determines how far a light throws. A tightly focused 1,000-lumen thrower will out-distance a 3,000-lumen floodlight, which is why reflector design matters as much as the headline number.

Which battery does it take, and do you sell spares?

Most of our lights use a built-in or removable lithium-ion cell such as a 14500, 16340, 18650, 21700 or 26650. The size is listed in the product specifications. We stock protected cells in all of those sizes plus a multi-chemistry charger, so you can keep a charged spare ready.

Can you help me choose between two models?

Yes, and we would rather do that than have you return something. Email Customersupport@brightlightled.shop or call 941-273-3209, Monday to Friday 8am to 5pm EST, with the two models and how you plan to use the light.

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