Ledlenser K4R Grey Keychain Torch

Small light, big power.

The K4R is a rechargeable keychain light with up to 120 lumens of light output, making it significantly brighter than most smartphone flashlight functions. No more messing with annoying cables as the light can be conveniently charged using the integrated fold-out USB-A interface. With its compacted brushed aluminum housing, the K4R combines a high-quality look and feel, making it an elegant and practical accessory for your key ring.

LED

• LED Configuration 1 x POWER LED
• Luminosity1 MAX 120 lm
• Battery Duration1 MAX 3.5 h

POWER LED

• This LED enables your Ledlenser to achieve high luminosity.

LIGHT FUNCTIONS

• Power - optimised light output

CASING

• Brushed aluminium housing with carabiner

SWITCHES

• Front Switch - a switch on the front of the light

SPECIAL FUNCTIONS

• Extremely Compact - yet very powerful with 60 lumens
• Rechargeable - via the supplied USB cable
• Metal Snap Hook - for easy attachment to keys, bags, etc.

HEIGHT AND WEIGHT

• Length (defocused) 52 mm
• Head Diameter 25 mm
• Weight 20 g

BATTERY AND CASING

• Battery Battery 1 x Li-ion Polymer 3.7V
• Water Resistance IP2X
• Rechargeable Yes

IP-CLASS

• IP2X - no special protection against elements

Key Features

• Compact keychain flashlight with up to 120 lumens output

• High-performance Power LED for bright and efficient lighting

• Integrated fold-out USB-A for easy cable-free charging

• Durable brushed aluminum housing for a premium feel

• Lightweight and portable design for everyday carry

• Metal snap hook for quick attachment to keys or bags

• Simple front switch for easy operation

• Reliable rechargeable battery for daily use

• Elegant and modern design suitable for all users

• Perfect alternative to smartphone flashlight

Product Specifications

• Brand: Ledlenser

• Model: K4R Grey

• Max Brightness: 120 lumens

• LED Type: Power LED

• Runtime: Up to 3.5 hours

• Battery Type: Li-ion Polymer 3.7V

• Rechargeable: Yes

• Charging Method: Integrated USB-A

• Length: 52 mm

• Head Diameter: 25 mm

• Weight: 20 g

• Water Resistance: IP2X

Design & Build Quality

The K4R features a robust brushed aluminum body that not only enhances durability but also gives it a stylish and premium finish. Its compact structure fits comfortably in your pocket or on your keychain without adding bulk. The integrated metal snap hook ensures secure attachment, while the minimalist design makes it both practical and visually appealing for everyday use.

Easy Operation / Usage

• Press the front switch to turn the light on or off

• Attach the torch easily using the metal snap hook

• Fold out the USB-A connector to recharge directly from a USB port

• Carry it conveniently on keys, bags, or pockets

Why Choose This Product

• Ultra-compact size with surprisingly powerful output

• Easy and cable-free USB charging

• Durable and stylish aluminum construction

• Lightweight design perfect for everyday carry

• Reliable performance for quick lighting needs

• Ideal for travel, daily use, and emergencies

In the Box

• Ledlenser K4R Grey Keychain Torch

• User Manual