Noctigon/EDC

Noctigon KR4

Name: Noctigon KR4
Brand: Noctigon
Price: 40 USD
Availability: InStock

Hank's tail-switch quad with premium emitter options. The KR4 is the D4V2's tail-switch sibling — same incredible tint and Anduril 2, different form factor preference.

Beam profile

Flood, about 44° wide. Wide and even — light where you are, not where you're pointing.

Estimated from 3,500 lm ÷ 7,500 cd — how this works

$40

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Specifications

Output: 3500lm
Peak intensity: 7500cd
Beam distance: 173m
Emitter: Nichia 519A 4500K
Colour rendering: 95 CRI
Beam type: Flood
Cell: 18650
Runtime: 1 hr (turbo)
Modes: Ramping + Stepped
Interface: Anduril 2
Water/dust: IP67
Dimensions: 3.9 x 1.0 in
Weight: 3.4 oz
Warranty: Manufacturer Limited

Manufacturer figures, measured to ANSI FL1 where the brand states it.

Features

High CRI (90+)Anduril UI Pocket Clip Waterproof (IP67+)Tail Switch Lockout Mode

What owners report

Noctigon KR4/5 sources reviewed

Hank's side-switch quad, and owners rate it highly on value, performance, design and build all at once, with the customisation that defines the brand. Available with a 95 CRI emitter option it offers about the best colour rendering on this site, and it runs Anduril — the most capable flashlight firmware there is. The package arrives well protected, with a handwritten note recording the emitter and tint you chose, which owners mention unprompted.

Two practical gaps and one caution. There's no onboard charging, so you need a separate lithium-ion charger, and there's no magnetic base. The caution is quality control: reviewers report issues that still seem to affect the model, which is the recurring trade-off with small-batch enthusiast manufacturing.

Consistently praised

95 CRI emitter option gives about the best colour rendering available
Anduril firmware with full configurability
Extensive customisation — emitter, tint, materials and switch
Excellent value, performance and build quality together
Arrives well packed with a handwritten note recording your emitter choice

Common complaints

Quality-control issues that reviewers say still affect the model
No onboard charging — a separate lithium-ion charger is required
No magnetic base
Ordering means a small-batch enthusiast supplier, not a retailer
Anduril's configuration menus are steep for a first enthusiast light

Questions people ask

What are the quality-control concerns?: Reviewers report intermittent issues that appear to persist across production. This is the standard trade with small-batch enthusiast lights — the design and specification are excellent, the consistency is less certain than a mass-market brand.
How does it charge?: It doesn't. There's no onboard charging, so you'll need a dedicated 18650 charger. That keeps the light smaller and simpler but is an extra thing to own.
KR4 or D4V2?: The KR4 has a side switch and a different body shape; the D4V2 is the tail-switch classic. Both run Anduril off the same emitter menu — pick on ergonomics.
Is 95 CRI worth it?: For anything you look at closely, yes. It's the highest colour rendering available on this site, and it's the main reason people choose a Hank light over a mainstream brand.

Sources (5)