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Whether you’re unlocking your door at night, navigating dimly lit paths, or needing a quick burst of light on the go, the Ledlenser K4R delivers consistent, bright performance in a device that fits comfortably on your keychain, bag, or backpack. Made from premium materials and engineered with German precision, this rechargeable torch combines form and function for daily use, travel, emergencies, or outdoor adventures.
With three brightness modes — including Boost Mode (120 lumens) for intense short bursts, Standard Mode (80 lumens) for routine use, and Low Power (20 lumens) for long-lasting output — the K4R adapts to your needs. The integrated USB-A fold-out charger means no cables required — simply plug it into a USB port for fast, convenient charging on the go.
An intelligent transport lock prevents accidental activation, while a battery/charge level indicator keeps you informed and in control of your torch's power. Built to withstand drops up to 2 metres and working in temperatures ranging from -20°C to +40°C, the LEDLENSER K4R Keyring Torch is made for real-world use, no matter where your day or night takes you.
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Battery Type: Rechargeable Lithium-ion
Battery Capacity: 180 mAh
Runtime: Low Power: Up to 3.5 hours; Standard Power: Up to 1 hour & Boost Mode: Short bursts
Charging Time: Approx. 180 minutes
Charging Method: Built-in fold-out USB-A connector
Charge Level Indicator: Yes
Max Output: 120 lumens (Boost mode)
Light Modes: Boost – 120 lm / 30m; Standard Power – 80 lm / 25m & Low Power – 20 lm / 10m
Beam Distance: Up to 30 metres
LED Type: 1 x white LED
Colour Temperature: 5000K–8000K
Colour Rendering Index (CRI): 70
Weight: 20g
Length: 52mm
Width: 25mm
Drop Resistance: Up to 2 metres
Working Temperature: -20°C to +40°C
IP Rating: IP2X (dust protection, minimal water ingress)
Housing Material: Durable aluminium
Transport Lock: Yes
Mounting: Integrated carabiner clip
USB Plug: Fold-out USB-A (no cable required)
Design: Compact, modern, and stylish
Usability: Ideal for keychains, backpacks, handbags, gloveboxes, or outdoor use
Standard shipping is a flat £4.99 and is free on orders over £75. Orders using standard shipping are usually delivered within 1-2 working days of placing your order.
We will rush to dispatch your order same or next working day, but will contact you if there will be any delays. Please note that orders are not shipped on weekend or bank holidays.
A next day courier option is available for £6.99 - orders placed before 2pm will arrive the next working day, however any order placed after this time will not be despatched until the following day.
If for some reason your order has not arrived within this time or if you have any queries regarding your order, please contact us.
If you wish for your order to be delivered to the following: Scottish Highlands, Northern Ireland or Isle of Wight/Isle of Man additional delivery charges may apply.