Klarus GL4 3300lm Rail Light (K-GL4)

Availability: In stock (5)

From Darkness to Daytime

The Klarus GL4 is a weapon light that gets down to business. Thanks to the mirrored reflector, it outputs a brighter beam that shines further, with 3,300 lumens and a 370-meter throw. With 5 brightness outputs including strobe, you're equipped with enhanced light capability that's ideal for on-duty patrol.


Streamlined Tactical Functionality

The Cable Switch design supplies you with significant tactical advantage. With the cable switch setup, you can easily access main and mode switches for turbo mode and momentary-on activation. Multiple mounting options are available on the GL4 for quick attachment to the included picatinny rail.


No-Hassle Charging

The in-body port allows for convenient USB-C recharging so you can get back in the field quickly. The included 21700 battery has a 5000mAh capacity for improved use long-term. This light includes a charging indicator so you know when to turn brightness level down on duty.


Notable Features:

  • Compatible with 1913/Picatinny and M-LOK rails
  • Dual spring protection reduces battery shock
  • Outdoor mode offers mode memory to set preferred brightness settings
  • Intelligent temperature control saves your light in long-term use
  • Has aluminum alloy protection with 1.5-meter drop resistance



Color: Black

Activity: Tactical, Outdoors

Max Throw: 1213.91ft / 370m

Peak Intensity: 34,240cd

IP Rating: IPX8 / 2m

Drop Resistance: 4.92ft / 1.5m

Switch: Tailcap

Material: Aluminum

Length: 1.5" / 38.2mm

Width: 1.82" / 46.3mm

Height: 5.5" / 139.7mm

Weight: 3.53oz / 150g

Battery Size: 1 x 21700

Batteries Included: Yes 5000mAh 21700 Li-ion Battery

Rechargeable: Yes

Charge Style: In-Body Charge Port (USB-C)

Charge Time: 4 Hours



  Turbo High Medium Low Strobe
Brightness 3300 lumens 1200 lumens 200 lumens 10 lumens 3300 lumens
Runtime 4 hours 7 hours 13.5 hours 375 hours -
Distance 370 meters 200 meters 80 meters 20 meters -
Intensity 34,240 candela 10,000 candela 1,600 candela 100 candela -
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