The Wurkkos HD04 Pocket flashlight has a multi-angle rotating head, spot, flood, and RGB LEDs. USB-C charging and a glow-in-the-dark physique end the package deal.
Official Specs and Options
Right here’s a hyperlink to the Wurkkos HD04 Pocket flashlight product web page.
Variations
The Wurkkos HD04 Pocket flashlight is obtainable in a single model however three physique colours: black, white, and blue.
Value
All physique colours of the Wurkkos HD04 Pocket flashlight are priced at $27.99.
What’s Included
- Wurkkos HD04 Pocket flashlight
- Charging cable
- Lanyard
- Handbook
Bundle and Handbook
Construct High quality and Disassembly
The Wurkkos HD04 Pocket flashlight has a plastic physique. The pinnacle is metallic, and that ought to assist with warmth administration of this 750-lumen (claimed) mild.
One of many most important promoting factors of the Wurkkos HD04 Pocket flashlight is the rotating head. Wurkkos describes it as “95° tilt + 180° rotation.” It’s very neat and may very well be helpful.
The physique being plastic means I didn’t disassemble the sunshine in any respect.
Measurement and Comps
71mm x 23.8mm x 36.8mm and 56g.
Right here’s the sunshine in hand:
Right here’s the take a look at mild with the venerable Convoy S2+. The model beneath is a customized laser-engraved Convoy S2+ host by GadgetConnections.com. I did a full put up on an engraved orange host proper right here! Or go straight to GadgetConnections.com to purchase your Convoy S2+ now!
Additionally within the picture above, my Normal Reference Materials (SRM) flashlight is the Hanko Machine Works Trident, an 18350 mild. Whereas I’ve not reviewed or examined the Gunner Grip model seen right here, I’ve examined a Hanko Machine Works Trident Whole Tesseract in brass. I like the Trident, and it’s a placing distinction to the cheap Convoy S2+, one other nice SRM.
Retention and Carry
The Wurkkos HD04 Pocket flashlight package deal features a lanyard. This lanyard attaches by a gap within the clip space of the again of the HD04.
It’s a quite simple lanyard.
The clip can also be an affordable and good means for holding the sunshine in place. The mouth opens very huge!
On the backside of this mild is a magnet. The sunshine weighs little, and the magnet is enough for holding it. It’s throughout magnet use that the tilting and rotating head actually shine!
Energy and Runtime
The Wurkkos HD04 Pocket flashlight makes use of a built-in 600mAh LiPO.
I wouldn’t have anticipated this mild to get anyplace close to 750 lumens, nevertheless it does a outstanding job – it’s nonetheless at 627 lumens after 30 seconds, and round 600 after 1.5 minutes. Not unhealthy in any respect.
The temperature strains in these charts are included as normal context, not exact measurements. The values symbolize the vary (min to max) throughout testing, however shouldn’t be taken as precise readings. A temperature sensor is just not all the time connected to the bezel (and even the most popular spot, assuming that may very well be outlined). Even with splendid placement, too many variables have an effect on temperature to definitively state a selected max worth.
Charging
The Wurkkos HD04 Pocket flashlight has an uncovered USB-C charging port on the top. It nonetheless maintains an IPX6 waterproof score.
Wurkkos features a USB-C to USB-C charging cable.
Charging could be very per A to C or C to C. Each look nice. A full cost takes about an hour and a 3rd.
Modes and Currents
| Mode | Mode Claimed Output (lm) | Claimed Runtime | Measured Lumens |
|---|---|---|---|
| Highlight – Turbo | 750 – 260 | 1m + 1h20m | 664 (0s) 627 (30s) |
| Highlight – Excessive | 375 – 260 – 150 | 5m+35m+1h15m | 324 (0s) 321 (30s) |
| Highlight – Medium | 110 | 4h | 94 |
| Highlight – Low | 10 | 38h | 9.5 |
| Highlight – Moonlight | 1 | 86h | 1.04 |
| Floodlight – Excessive | 450 – 150 | 3m+1h30m | 372 (0s) 345 (30s) |
| Floodlight – Medium | 100 | 2h50m | 84 |
| Floodlight – Low | 10 | 29h | 8.5 |
| Floodlight – Moonlight | 1 | 75h | 0.6 |
Pulse Width Modulation
The highest row right here is the spot output. The underside row is 4 modes of flood, and the rightmost is the RGB channel. RGB is the one output to make the most of PWM.
Click on right here to see a “baseline” – a chart with virtually no mild hitting the sensor.
Then there’s the Ultrafire WF-602C flashlight, which has a few of the worst PWM I’ve seen. It’s so unhealthy that I used a put up about it to elucidate PWM! Listed below are a number of timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make evaluating this “worst” PWM mild to the take a look at mild simpler. That put up additionally explains why I didn’t take a look at the WF-602C on the regular 50us scale.
Consumer Interface and Operation
There are two switches on the Wurkkos HD04 Pocket flashlight. One is the Mode button, and the opposite is the Brightness button (in response to the handbook names).
The switches are effective and have good motion. They appear to have a metallic cowl and be typically equivalent.
Right here’s a consumer interface desk!
| State | Motion | End result |
|---|---|---|
| Off | Click on the Energy button | On (output and degree reminiscence) |
| Off | Click on the Mode button | Pink blinking (could also be battery indicator) |
| Off | Maintain the Energy button | White: lowest degree RGB: On after which instantly advance RGB output |
| On | Maintain the Energy button | Advance mode of present LED |
| Spot on | Double click on energy | Spot Turbo |
| Highest, both white mode | Double click on energy button | Iterate between highest and lowest ranges |
| On | Click on Energy 3x | Strobe |
| Strobe | Click on Energy 2x | Strobe Advance (Strobe > SOS > Beacon) |
| RGB on | Click on Energy 2x | Dynamic RGB choices advance (Flashing (Pink and blue) > Stepless Gradient Dimming > Warning Flash > Full-color respiratory) |
| On | Click on Mode | Advance output choices (Spot > Flood > RGB) |
| RGB on | Maintain the Energy button | RGB Advance |
LED and Beam
I don’t know that Wurkkos states what these emitters are, however I learn (someplace) that each white emitters are Luminus SST20. They’re vastly totally different in CCT, although. All three emitters are behind a TIR.
The names are correct – flood is floody, and spot has a pleasant, tight profile.
LED Coloration Report (CRI and CCT)
The Spot emitter is low CRI and excessive(ish) CCT, peaking at round 6100K. The flood emitter, however, is excessive CRI and heat, staying proper round 3900K. The flood emitter could be very nice! It’s the second row, beneath.
CCT (Correlated Coloration Temperature) refers back to the measurement of the colour look of sunshine, expressed in Kelvins (Okay), which signifies whether or not the sunshine is heat (yellowish) or cool (bluish). A decrease CCT (beneath 3000K) is taken into account heat mild, whereas a better CCT (above 5000K) provides cooler, bluish mild.
CRI (Coloration Rendering Index) is a measure of how precisely a light-weight supply renders colours compared to pure daylight. Scored on a scale from 0 to 100, greater CRI values point out that colours seem extra true to life and vibrant, much like how they’d look beneath the solar.
Beamshots
These beamshots all the time have the next settings: f8, ISO100, 0.3s shutter, and handbook 5000K publicity. These images are taken at flooring degree, and the beam hits the ceiling round 9 toes away.
Tint vs BLF-348 (KillzoneFlashlights.com 219b model) (affiliate hyperlink)
I maintain the take a look at flashlight on the left and the BLF-348 reference flashlight on the fitting. These images are taken round 18 inches from the door.
I examine every part to the KillzoneFlashlights.com 219b BLF-348 as a result of it’s cheap and has the perfect tint!
Abstract and Conclusion
The Wurkkos HD04 pocket flashlight is a enjoyable gadget! I’m more than happy with the flood emitter, as a result of it’s heat and excessive CRI. The spot emitter is okay as a result of it has a definite and helpful spot. It’s additionally moderately excessive output (particularly for such a small mild). It’d be nice if the battery had been user-replaceable. In case you want RGB, it is a good, cheap approach to get it.
The Large Desk
^ Measurement disclaimer: Testing flashlights is my interest. I exploit hobbyist-level tools for testing, together with some I made myself. Strive to not get buried within the particulars of producer specs versus measurements recorded right here; A specific amount of distinction (say, 10 or 15%) is completely affordable.
What I like
- Low value
- Gadget issue
- Excessive CRI, heat flood channel
What I don’t like
- Battery can’t get replaced
- Opposing buttons imply you’ll be able to’t squeeze to activate

























