Ledlenser K4R

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 torch 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.

Ultracompact keychain light with up to 120 lumens of light output
High-quality brushed aluminum housing with carabiner for easy attachment
Easy and fast charging via foldout USB-A interface without separate charging cable
Integrated battery and charge level indicator
Practical transport lock protects against unintentional switching on

Technical data

Beam distance (in m) ¹ 30

Max. Luminous flux (in lm) ¹ 120

Lightsource quantity 1

CRI 70

Lightsource color temperature 5000 - 8000
1Measured values according to ANSI/PLATO FL 1 at the respective setting. If no setting is explicitly named, the values for luminous flux (lumen/lm) and luminous range (metres/m) refer to the brightest setting and the values for luminous duration (hours/h) to the lowest setting. A boost function (if available) can be used several times, but is only available for a short time at a time. In case the lamp is equipped with coloured LEDs, the measured values are given with white light or the white LED. If the lamp has different energy modes, the "energy saving mode" is the basis for the measurement
- Runtime (in hours) ¹ 3
  
  Rechargeable Yes
  
  Charging time (in minutes) 180
  
  1Measured values according to ANSI/PLATO FL 1 at the respective setting. If no setting is explicitly named, the values for luminous flux (lumen/lm) and luminous range (metres/m) refer to the brightest setting and the values for luminous duration (hours/h) to the lowest setting. A boost function (if available) can be used several times, but is only available for a short time at a time. In case the lamp is equipped with coloured LEDs, the measured values are given with white light or the white LED. If the lamp has different energy modes, the "energy saving mode" is the basis for the measurement.
  
  Length (in mm) 52
  
  Head diameter (in mm) 25
  
  Tube diameter (in mm) 25
  
  Weight (in g) 20
  
  Materials Aluminum alloy
  
  Water and dust resistance IP20
  
  Drop test height (in m) 2
  
  Working temperature (in C°) -20 - 40

Beam distance (in m) ¹	30
Max. Luminous flux (in lm) ¹	120
Lightsource quantity	1
CRI	70
Lightsource color temperature	5000 - 8000

Runtime (in hours) ¹	3
Rechargeable	Yes
Charging time (in minutes)	180

Length (in mm)	52
Head diameter (in mm)	25
Tube diameter (in mm)	25
Weight (in g)	20

Materials	Aluminum alloy
Water and dust resistance	IP20
Drop test height (in m)	2
Working temperature (in C°)	-20 - 40

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