Wurkkos HD02 Pro Flashlight Review

The Wurkkos HD02 Pro flashlight builds on the prior work and features a white LED, green laser, two-mode UV, and a fun CCT-adjustable side light setup! Read on!

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Official Specs and Features

Here’s a link to the Wurkkos HD02 Pro flashlight product page.

Versions

As far as I can tell, there’s just one version of the Wurkkos HD02 Pro flashlight, but various kits are available.

Price

The Wurkkos HD02 Pro flashlight is available now at the 7th anniversary (of Wurkkos) price of $96.99. MSRP appears to be around $138.55.

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What’s Included

• Wurkkos HD02 Pro flashlight
• Wurkkos 5000mAh 21700
• Charging cable
• Lanyard
• Spare o-rings (2)
• Manual

Package and Manual

Build Quality and Disassembly

Build quality of the Wurkkos HD02 Pro flashlight is good – there are no real concerns here. It’s not a small light, though, so don’t really think of this as a “flat light” in the realm of Olight Arkfeld Pro. But it’s sturdy!

Visually, the Wurkkos HD02 Pro flashlight is just like the non-pro version.

The tailcap is removable. It’s just a bit hard to get at, because so little of it (4- 5 mm) sits above the body of the light.

It’s the type of tailcap I don’t like because it fits around the 21700. I also don’t like this setup because it’s nearly impossible to avoid touching the threads. And then you’ll get thread lube on your fingers!

Inside the cell tube is a spring – in fact, both ends have springs.

There are COB emitters on these arms. They’re very floody (obviously, as they’re COB), but they also offer “infinite” CCT changing options from warm to cool white.

Just inside the arms, each section of the body has a bit of information about these side emitters. Basically, the user interface for the side emitters.

There are some performance differences between the Pro and the non-pro, but one major non-electronic difference is that the wings or arms on the Wurkkos HD02 Pro flashlight are more adjustable! This is honestly a massive improvement, too.

Size and Comps

126×41×26mm and 195g (without cell).

Here’s the light in hand:

Here’s the test light with the venerable Convoy S2+. This is a brass version, which is a good bit heavier than aluminum, but has the same dimensions: 24mm in diameter by 117.5mm in length.

Also in the photo above, my Standard Reference Material (SRM) flashlight is the Hanko Machine Works Trident, an 18350 light. While I have not reviewed or tested the Gunner Grip version seen here, I have tested a Hanko Machine Works Trident Total Tesseract in brass. I love the Trident, and it’s a striking contrast to the inexpensive Convoy S2+, another great SRM.

Retention and Carry

A pocket clip is built into the Wurkkos HD02 Pro flashlight. The clip is attached by three screws. It’s not reversible and is not really deep carry.

A lanyard is included. It really only attaches to the pocket clip, which is not ideal, as there’s not a great place to attach it. Yes, there’s a big open area in the clip, and it’ll be easy to attach, but it’s still not a great spot.

The tailcap magnet is very strong!

Power and Runtime

The Wurkkos HD02 Pro flashlight uses a lithium-ion cell. Wurkkos includes this 5000mAh 21700.

The positive end goes into the light (the normal orientation for cells).

The tail end has a little cell orientation icon, too!

As far as I can tell (and according to the manual), the main emitter (Luminus SFT70.2) does not have discrete modes. That means there are Low and Turbo, and nothing specific in between. It’s a real shame that the light lacks discrete modes. I need those modes. I need 4, but a light like this probably needs 5. Ramping in addition is fine!

I added one test of the COB output just so you can get an idea of how it performs qualitatively. It’s very steady for hours on the highest level!

The temperature lines in these charts are included as general context, not precise measurements. The values represent the range (min to max) during testing, but should not be taken as exact readings. A temperature sensor is not always attached to the bezel (or even the hottest spot, assuming that could be defined). Even with ideal placement, too many variables affect temperature to definitively state a specific max value.

Charging

The Wurkkos HD02 Pro flashlight has a USB-C charging port in the head, just above the pocket clip.

Wurkkos includes a C to C charging cable.

Charging looks good and is pretty high current – around 2.3A from the USB source. That’s a lot, but the cell is 5000mAh. Thus, 2.4A is under 0.5C.

Pulse Width Modulation

None of the modes use PWM. This is Low/High Front white, then Low/High Side COB (WW then CW). Basically it doesn’t matter except to again say: none of the modes use PWM.

Click here to see a “baseline” – a chart with almost no light hitting the sensor.

Then there’s the Ultrafire WF-602C flashlight, which has some of the worst PWM I’ve seen. It’s so bad that I used a post about it to explain PWM! Here are multiple timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make comparing this “worst” PWM light to the test light easier. That post also explains why I didn’t test the WF-602C at the usual 50us scale.

User Interface and Operation

The Wurkkos HD02 Pro flashlight uses (first) a rotary selector. Next, and in the center of that rotary control, is an indicating e-switch. The rotary order is UV, LED, Laser, and it does not have a lock position.

The e-switch is proud, and the action is deep.

The switch can indicate in various colors. Below you can see the light headstanding while on, and the switch indicating in green.

Here’s a user interface table! What the Wurkkos HD02 Pro flashlight does, of course, depends on where the selector is.

State	Action	Result
Off – Selector on UV/Red	Click	UV on
UV on	Hold	Mode advance (Low > High)
UV on	Double click	Red on
Red on	Double click	UV on
On	Click	Off
Off – Selector on Laser	Click	Laser On
Off – Selector on LED	Click	On – Level memory
Off – Selector on LED	Hold	Low
Any (Except strobe) – Selector on LED	Double click	Turbo
Turbo	Double click	Low
Any – Selector on LED	Click 3x	Strobe
On – Selector on LED (or red on)	Hold	Stepless brightness adjustment^
Selector anywhere	Open side light(s)	Side lights on in mode memory
Side beam on	Hold	Stepless brightness adjustment^
Side beam on	Click + Click hold	Stepless CCT adjustment
Off	Click 4x	Lock
Lock	Click 4x	Unlock

^ Hold once to increase brightness. Release and hold again to decrease brightness.

I believe this user interface is exactly like the non-Pro, with the addition of how to get through the Red modes.

LED and Beam

Wurkkos has used a Luminus SFT70.2 emitter and a smooth reflector. The two-mode UV emitter also has a tiny reflector. You can see the laser module too – the bottom brassy piece. This is all covered by a lens. The red emitter is an addition from the non-Pro version!

Red output is a great addition! And it’s nice that it gets the full output range just like the main white emitter, too.

LED Color Report (CRI and CCT)

This is Low/High Front white, then Low/High Side COB (WW then CW). The front emitter is high CCT and low CRI, but it seems all CCTs of the side COB emitters are high CRI. That’s nice!

CCT (Correlated Color Temperature) refers to the measurement of the color appearance of light, expressed in Kelvins (K), which indicates whether the light is warm (yellowish) or cool (bluish). A lower CCT (below 3000K) is considered warm light, while a higher CCT (above 5000K) gives cooler, bluish light.

CRI (Color Rendering Index) is a measure of how accurately a light source renders colors in comparison to natural sunlight. Scored on a scale from 0 to 100, higher CRI values indicate that colors appear more true to life and vibrant, similar to how they would look under the sun.

Beamshots

These beamshots always have the following settings:  f8, ISO100, 0.3s shutter, and manual 5000K exposure. These photos are taken at floor level, and the beam hits the ceiling around 9 feet away.

Tint vs BLF-348 (KillzoneFlashlights.com 219b version) (affiliate link)

I keep the test flashlight on the left and the BLF-348 reference flashlight on the right. These photos are taken around 18 inches from the door.

I compare everything to the KillzoneFlashlights.com 219b BLF-348 because it’s inexpensive and has the best tint!

Summary and Conclusion

The Wurkkos HD02 Pro flashlight is certainly a full-featured light, with many features. If you need laser and UV, this light seems like a good choice. I’m pleased that red has been added and that the red output has the same output range as the front emitter. I don’t necessarily care that the wing lights have adjustable CCT, but I am pleased that the full range seems to be high CRI. The main (front) LED really needs discrete modes, though. The user interface is easy enough to understand, too.

The Big Table

Wurkkos HD02 Pro Flashlight
Emitter:	Luminus SFT70.2
Price in USD at publication time:	$96.99
Cell:	1×21700
Runtime Graphs
LVP?	Yes, or “questionable”
Switch Type:	E-switch
Quiescent Current (mA):	?
On-Board Charging?	Yes
Charge Port Type:	USB-C
Charge Graph
Power off Charge Port	with cell: all modes without cell and/or tailcap: no
Claimed Lumens (lm)	3200
Measured Lumens (at 30s)	2222 (69.4% of claim)^
Candela per Lumen	9.8
Claimed Throw (m)	330
Candela (Calculated) in cd (at 30s)	744lux @ 5.422m = 21872cd
Throw (Calculated) (m)	295.8 (89.6% of claim)^
Claimed CCT	–
Measured CCT Range (K)	5900-6900 Kelvin
Item provided for review by:	Wurkkos
All my Wurkkos reviews!

^ Measurement disclaimer:  Testing flashlights is my hobby. I use hobbyist-level equipment for testing, including some I made myself. Try not to get buried in the details of manufacturer specifications versus measurements recorded here; A certain amount of difference (say, 10 or 15%) is perfectly reasonable.

What I like

• Addition of red output
• Wings are more adjustable on the Pro version
• Good build quality
• Reasonably simple user interface
• Two modes for UV
• Lasers are fun!
• The COB wing lights are fun and interesting (and work well)
• CCT adjustment on side lights

What I don’t like

• It’s big for being a “flat light”
• The tailcap
• Price
• Ramping only for main LED
• No direct access to turbo for Red mode

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Notes

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