How we scoreBlogAdvertise
html›body›main#compare791 models · updated Oct 21, 2026
  1. compoundsemi.com
  2. Compare
  3. K4R vs K6R

Ledlenser K4R vs Ledlenser K6R

What K4R does better (1) and where K6R wins (2) — every spec side by side.

Ledlenser K4R
Ledlenser · 2021K4R
6.4Score
1 advantage≈ $20
Higher score
vs
Ledlenser K6R
Ledlenser · 2021K6R
4.8Score
2 advantages≈ $30
6.4Brightness & throw7.0
2.1Battery & charging2.7
8.5Build & durability3.5

Why is K4R better than K6R?

  1. Weight20 g vs 30 g+52%

Why is K6R better than K4R?

  1. Maximum output120 lm vs 400 lm3.3×
  2. Maximum runtime3.5 h vs 10 h2.9×
Specifications

Side by side

Ledlenser K4RLedlenser K4R≈ $206.4
Ledlenser K6RLedlenser K6R≈ $304.8
Light output
Maximum output120 lm400 lm
Peak beam intensity2,450 cd2,450 cd
Beam distance (ANSI FL1)99 m99 m
Light sourceLEDLED
Battery & charging
BatteryBuilt-in Li-ion / Li-PoBuilt-in Li-ion / Li-Po
Number of batteries—1
Maximum runtime3.5 h10 h
RechargeableYesYes
Build & durability
Protection ratingIP2XIP2X
Water protection (IPx)—IPx4
Body materialAluminiumAluminium
Size & weight
Length / height50.8 mm62 mm
Head diameter / width—30 mm
Weight20 g30 g
Modes & features
Strobe—Yes
Red light—Yes
To compare: 0up to 4 models
Compare