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KLARUS GL4 3300 Lumens USB-C Rechargeable Rail-Mounted Light

Compact, powerful lighting built for everyday carry, emergencies, and professional use

$109.99

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  • 3300 lumens max brightness with 747 ft beam throw
  • Built for real-world use with tough, durable construction
  • IPX8 waterproof, USB-C rechargeable, up to 375 hours of runtime
  • Professional-grade cable pressure switch for remote activation

FAQS
  • How bright is the Klarus GL4?
    The GL4 delivers up to 3300 lumens for maximum visibility in low-light environments.
  • How is the light controlled?
    It uses a remote pressure switch system that allows fast activation and mode control without changing grip.
  • How long does the battery last?
    Runtime can reach up to 375 hours on lower output settings, depending on usage.
  • Is the GL4 built for harsh conditions?
    Yes. It is designed with durable materials to withstand demanding environments.
  • What mounting systems does it support?
    The GL4 is designed for standard rail-mounted applications.

Full Specifications

Model: GL4
Maximum Output: 3300 lumens
Runtime: Up to 375 hours on low mode
Output Levels: Turbo 3300 lumens, High 1200 lumens, Medium 200 lumens, Low 10 lumens, Strobe 3300 lumens
Runtime by Mode: Turbo 4 hours, High 7 hours, Medium 13.5 hours, Low 375 hours
Candela: Up to 34240 cd
Beam Distance: Up to 1213 ft
Beam Distance by Mode: Turbo 1213 ft, High 656 ft, Medium 262 ft, Low 65 ft Control System: Remote pressure switch with cable control
Mounting: Rail mounted design
Construction: Rugged, durable build for extreme conditions
Battery: 1 x 21700
Working Voltage: 2.8 to 4.2V
Charging: 5V 2A
Drop Resistance: 4.92 ft
Water Resistance: IPX8 rated for up to 30 minutes submerged at 6.5 ft
Dimensions: 5.5 in x 1.18 in x 1.06 in
Weight: 5.3 oz without battery
Warranty: 5 years

Ideal For

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  • Rail-mounted tactical lighting
    High-output illumination for equipment-mounted applications requiring maximum brightness.
  • Professional & duty use
    Designed for extended operations where reliable lighting and remote control are critical.
  • Outdoor & low-light operations
    Strong beam output for navigation, search, and situational awareness in dark environments.
  • Emergency & preparedness
    Long runtime and powerful output for sustained use during critical situations.

Shipping Info

Orders typically ship within 24 hours (excluding holidays)

Description

Klarus GL4 High-Output Rail-Mounted Light

Extreme Brightness for Demanding Environments

The Klarus GL4 Rail-Mounted Light delivers exceptional illumination with up to 3300 lumens, designed for situations where maximum visibility is critical. Its high-output performance ensures wide, clear coverage in low-light and high-pressure environments.

Advanced Remote Control Operation

An integrated remote pressure switch system allows fast, controlled activation without changing grip or position. This setup supports consistent, precise light control during extended or demanding use.

Extended Runtime for Long Operations

With an efficient power system delivering extended runtime on lower settings, the GL4 is built for prolonged use without frequent battery changes, supporting continuous operation when reliability matters.

Durable Construction for Harsh Conditions

Engineered with rugged materials, the GL4 is designed to withstand challenging environments while maintaining dependable performance. Its robust build supports consistent operation in professional, outdoor, and equipment-mounted applications.

Designed for Rail-Mounted Applications

Built for compatibility with standard rail systems, the GL4 provides stable mounting and dependable illumination for users who require powerful, hands-free lighting integrated with their equipment.

Reviews (2)

Customer Reviews

Based on 2 reviews
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D
David D.
Home run

Excellent product and service!

R
Review Central Command
BRIGHT!

Wow, this is the BRIGHTEST light I've ever owned. We'll worth it, fits nice on my rifle. It lights up the whole woods at night, with nothing to hide.

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