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Ledlenser K4R LED keychain light

Compact mini torch with state-of-the-art LED technology

  • High-quality workmanship made of aluminium
  • SOS function integrated
  • Charging via USB-A interface

Compact mini torch with state-of-the-art LED technology

  • Robust aluminium construction
  • Luminosity up to 120 lumens
  • Built-in SOS function
  • Charging via USB-A interface
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Original price $17.00
Original price $17.00 - Original price $17.00
Original price $17.00
Current price $13.00
$13.00 - $13.00
Current price $13.00
In stock
in stock, ready to be shipped
Shipping and price information

13,90€ to UK and within the EU.
All countries/shipping rates.

Taxes and duties may apply outside the EU.

Prices incl. VAT and plus shipping. Comparison prices and discounts refer to the manufacturer's recommended retail price.

Payable with PayPal, ApplePay, AmazonPay, Mastercard, Visa, SOFORT

Accessories - Editorially selected

Ledlenser K4R LED keychain light: plenty of light in a compact design

Experience a high-quality mini torch with state-of-the-art LED technology with the Ledlenser K4R keychain light. Robust, powerful and in elegant rose gold - always ready to hand for your lighting needs
Handy, compact and full of power

The Ledlenser K4R LED keychain light shows that compact size is no obstacle to extraordinary performance. With a luminous flux of up to 120 lumens and a maximum burn time of 3.5 hours, this torch offers outstanding lighting performance. Its robust and high-quality aluminium construction makes it a durable companion, while the mini carabiner ensures practical attachment.

Technical sophistication with ease of use

The Ledlenser K4R offers not only pure light, but also smart technologies for easy and convenient use. Fast and uncomplicated charging is guaranteed thanks to the fold-out USB-A interface, whereas a practical transport lock protects against unintentional switching on. In addition, you are always informed about the charging status thanks to the integrated charging status and battery display.

Advanced functions for your safety

In addition to a power mode, the K4R has an SOS function. A long press on the power button (3 seconds) activates a natural magnesium flash that can ultimately save lives in emergency situations. This makes the Ledlenser K4R not only a practical light source, but also a useful companion in emergency situations.

About Ledlenser

Over 1,500 dedicated employees at locations in Germany, Italy, Japan, China and Switzerland produce a range of torches and headlamps that is unrivalled anywhere in the world. Excellent quality and innovation characterise Ledlenser's products and give the company its high recognition.

FAQ about the Ledlenser K4R keychain
  1. How long does the battery last with constant use?
    With constant use, the Ledlenser K4R offers a maximum lighting time of 3.5 hours.
  2. Can I use the lamp while it is charging?
    It is recommended to keep the lamp switched off during charging to ensure optimal charging.
  3. How can I activate the SOS function?
    Pressing the power button for a long time (3 seconds) activates the SOS function.

Product features of the Ledlenser K4R LED keychain torch

  • Light intensity: Up to 120 lm
  • Light duration: Maximum 3.5 hours
  • Rechargeable: Easy and fast recharging via fold-out USB-A interface
  • Safety: Practical transport lock prevents unintentional switching on
  • Power source: 1 x Lio-Ion polymer 3.7 V rechargeable battery
  • Design: High-quality aluminium case with carabiner hook
  • Lightweight: Weighs only 20 g
  • Compact: Very handy with a length of only 52 mm
  • Colour: In elegant rose gold

Rely on the expertise of LUMITRONIX and benefit from 20 years of experience in LED technology. With the Ledlenser K4R keychain torch, you are investing in a sustainable, long-lasting and high-quality lighting solution.

Technical Details
Manufacturer code
Luminous flux (lm)
80 (lm)
CRI (Ra)
Power (W)
0.67 (W)
Voltage (V)
3.7 (V)
Protection class
Size (L x W x H)
5.2 cm x 2.5 cm x 2.5 cm
0.02 kg

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