Emisar DW4 vs Emisar D4V2 21700
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Quick take: The Emisar D4V2 21700 costs $5 less; the Emisar D4V2 21700 throws farther (210m vs 144m); the Emisar D4V2 21700 runs longer on high (2 vs 1 hrs).
| Spec | Emisar DW4 | Emisar D4V2 21700 |
|---|---|---|
| Price | $55 | $50 |
| Rating | — | — |
| Type | Headlamp | EDC |
| Lumens | 4,500 lm | 4,500 lm |
| Candela | 5,200 cd | 11,000 cd |
| Beam distance | 144m | 210m |
| Runtime | 1 hr (turbo) | 2 hrs (turbo) |
| Battery | 18650 | 21700 |
| LED | Nichia 519A 4500K | Nichia 519A 4500K |
| Beam type | Flood | Flood |
| Modes | Ramping + Stepped | Ramping + Stepped |
| UI | Anduril 2 | Anduril 2 |
| IP rating | IP67 | IP67 |
| CRI | 95 | 95 |
| Weight | 2.8 oz | 3.5 oz |
| Dimensions | 3.9 x 1.3 in | 4.3 x 1.2 in |
| Warranty | Manufacturer Limited | Manufacturer Limited |
What owners report
Emisar DW4
- ✓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
- ✗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
Emisar D4V2 21700
- ✓More thermal mass than the 18650 version — turbo lasts meaningfully longer
- ✓Substantially more capacity from the 21700 cell
- ✓Same configure-to-order emitter, tint, material and switch menu
- ✓Anduril, with aux LEDs under the optic
- ✓Long-term owners report excellent build and no reliability problems
- ✗Noticeably larger and heavier than the 18650 version
- ✗No onboard charging on most configurations
- ✗Anduril's configuration menus are bewildering at first
- ✗Ordering means intl-outdoor with long shipping times
- ✗Still gets hot on turbo, just less quickly

