Emisar/Headlamp

Emisar DW4

Name: Emisar DW4
Brand: Emisar
Price: 40 USD
Availability: InStock

Hank's right-angle headlamp with the same emitter options as the D4V2. The DW4 is the enthusiast headlamp — Anduril 2, aux LEDs, and gorgeous tint in a headband-ready form factor.

Beam profile

Flood, about 54° wide. Wide and even — light where you are, not where you're pointing.

Estimated from 3,500 lm ÷ 5,200 cd — how this works

$40

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Specifications

Output: 3500lm
Peak intensity: 5200cd
Beam distance: 144m
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: 4.4 x 1.2 in
Weight: 3.0 oz (without battery)
Warranty: Manufacturer Limited

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

Features

High CRI (90+)Anduril UI Aux LEDs Waterproof (IP67+)

What owners report

Emisar DW4/4 sources reviewed

Hank's right-angle work light, and the owners who rate it highest are the ones using it hardest: reports from caving, mine exploration and search and rescue describe it as absolutely flawless, small and light enough to wear on a helmet for hours. One owner scored it 10/10 and said it was reliable enough they'd never need to replace it. The boost driver gives good efficiency and runtime, and as with every Emisar you pick the optics and emitters you want.

Build is CNC-machined aircraft aluminium with trapezoid-cut, factory-lubricated threads. Two limitations to plan around: there's no USB-C charging or reverse charging, so the cell comes out to be charged, and it's fussy about cells — unprotected flat-top 21700s only. Protected or button-top cells simply won't fit.

Consistently praised

Owners in caving, mine exploration and search and rescue call it flawless
Light enough to wear on a helmet for hours
Boost driver gives good efficiency and regulated runtime
Choice of optics and emitters, as with every Emisar
CNC-machined aluminium with trapezoid threads and factory lubrication

Common complaints

No USB-C charging or reverse charging — the cell comes out
Takes unprotected flat-top 21700s only
Protected and button-top cells won't fit at all
Ordering goes through a small-batch supplier with long lead times
Anduril's configuration menus are steep for a first enthusiast light

Questions people ask

What cells does it take?: Unprotected flat-top 21700s only. Protected cells are too long and button-tops won't seat. Buy cells at the same time as the light to avoid a frustrating first evening.
Is it good for helmet use?: It's the use owners rate it highest for. Cavers and search-and-rescue users report wearing it for hours, which is the real test of a right-angle light's weight and balance.
How does it charge?: It doesn't — there's no port. You remove the cell and charge it externally, which is the standard Emisar trade for a smaller, simpler, better-sealed light.
DW4 or D4V2?: The DW4 is the right-angle body for headlamp and work use; the D4V2 is the straight torch. Same firmware and emitter menu — choose on how you'll hold it.

Sources (4)