K4R Keychain Light
$39.90
Zero-risk 30 day guarantee + 7 year warranty*
POWERFUL AND RECHARGEABLE KEYCHAIN LIGHT ALWAYS READY WHEN NEEDED
The Ledlenser K4R is an ultra-compact yet powerful light delivering up to 120 lumens that can be quickly and easily recharged via the simple fold out USB-A interface. View Product Details-
120 lm10 lm
-
30 m10 m
-
1 h3.5 h
LED
- LED Configuration 1 x POWER LED
- Luminosity1 MAX 120 lm - MIN 10 lm
- Lighting Range1 MAX 30 m - MIN 10 m
- Battery Duration1 MAX 3.5 h - MIN 1 h
POWER LED
This LED enables your Ledlenser to achieve high luminosity.
Light Functions
- Power - high light output for every situation
- Low Power - economical light for long battery life, glare-free reading and working
- Boost - short-duration maximum power for more brightness
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 120 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

$39.90
Ledlenser K4R Keychain Light
POWERFUL AND EASILY RECHARGEABLE KEYCHAIN LIGHT ALWAYS READY WHEN NEEDED
The Ledlenser K4R is an ultra-compact yet powerful light delivering up to 120 lumens that can be quickly and easily recharged via the simple fold out USB-A interface.
ENDLESS BENEFITS:
- Foldout USB-A: Reliable charging that is quick and easy to use; no cables required
- Always Within Reach: Carabiner let's you easily attach to keychain, backpack or purse
- Transport Lock: Lock protects against unintentional switching on
- Charge Level Indicator: Always know how much battery life is available
Ledlenser K4R Keychain Light
POWERFUL AND EASILY RECHARGEABLE KEYCHAIN LIGHT ALWAYS READY WHEN NEEDED
The Ledlenser K4R is an ultra-compact yet powerful light delivering up to 120 lumens that can be quickly and easily recharged via the simple fold out USB-A interface.
ENDLESS BENEFITS:
- Foldout USB-A: Reliable charging that is quick and easy to use; no cables required
- Always Within Reach: Carabiner let's you easily attach to keychain, backpack or purse
- Transport Lock: Lock protects against unintentional switching on
- Charge Level Indicator: Always know how much battery life is available
BACKED BY THE LEDLENSER QUALITY GUARANTEE
With quality German Engineered products, we have the highest standards in terms of innovation materials, technology, workmanship, design and sustainability. And because we believe in the quality of our products, we also offer a seven years warranty with our lighting solutions.
WHERE LIGHT AND EXPERTISE COME TOGETHER
Before the final production of a new Ledlenser light come months, even years, of research and development.
- Reviews
- Questions
K4R Keychain Light - brilliant
strong, powerful beam in a such a small light, absolutely top notch product

Always ready at your fingers tips!
Exceptional. Always ready and charged when needed.



Keyring Lamp
Awesome lil pocket light . Only thing is when it’s in your pocked hooked up to your keys , it unlocks its self and the light stays on till you realise it.