Wurkkos HD01

Specifications

Brand/model Wurkkos HD01
LED 1*HM, 16*CSP1313, 15*RGB, 1*Green Laser
Maximum lumens 1,200 lm
Maximum beam intensity 6,175 cd
Maximum throw 157 m
Battery Built-in 1200mAh LiPo
Onboard charging Yes (USB-C)
Material Aluminium
Modes 5
Blinkies Strobe
Reflector TIR
Waterproof IP65
Review date June 2024

Introduction

The Wurkkos HD01 is a flat-style EDC torch with a spotlight, a floodlight, an RGB light and a green laser pointer.

There are so many features packed into this little torch!

Will the HD01 take my presentations to the next level?

It reminds me of the Olight Arkfeld Pro. But there are notable differences.

Wurkkos sent this torch for review. I have not been paid for this review nor have I held back my opinions of this torch.

Packaging

The Wurkkos HD01 comes in a white box. The outer sheath has an image of the torch on the front and details about the torch on the back.

Wurkkos HD01 packaging Wurkkos HD01 packaging

Wurkkos HD01 packaging Wurkkos HD01 packaging

The following was included in the box:

  • Wurkkos HD01
  • USB-A to USB-C cable
  • Lanyard
  • User manual

Wurkkos HD01 packaging Wurkkos HD01 packaging

Wurkkos HD01 accessories Wurkkos HD01 user-manual-1

Wurkkos HD01 user-manual-2 Wurkkos HD01 user-manual-3

Torch in use

The Wurkkos HD01 fits comfortably in my hand.

The two buttons feel as though they are in an ergonomic position. They give a satisfying click.

Wurkkos HD01 in use 1 Wurkkos HD01 cover

The green laser pointer may be useful in a classroom.

There are magnets in the tailcap to allow the HD01 to be attached to a surface and used as a worklight. The Floodlight on the side is very floody!

Wurkkos HD01 in use 1

The RGB Light behind the same opaque strip that the Floodlight uses has three special modes: Police Flash, RGB Waterfall and Droplets.

Wurkkos HD01 police-flash Wurkkos HD01 rgb-waterfall Wurkkos HD01 droplets

The Spotlight can produce less than 1 lumen and more than 1,000 lumens. This is great for EDC use.

There is a reversible pocket clip with a lanyard hole. It would be even better if it had a slightly deeper carry.

Wurkkos HD01 closeup-pocket-clip

The HD01 did accidentally turn on in my pocket a few times when I forgot to lock it. I highly recommend making use of the electronic-lockout feature by clicking either button four times while off.

Build quality

The Wurkkos HD01 is made of aluminium and it has a matte black anodised finish.

Machining on the bezel is a bit rough. The two top corners are almost sharp. The edges could be chamfered more to smoothen them out. Other than that, there are no other sharp edges.

Wurkkos HD01 closeup-emitters

The torch can tailstand and headstand but there is a slight bevel on the head.

Wurkkos HD01 front Wurkkos HD01 left

Wurkkos HD01 back Wurkkos HD01 right

The Wurkkos HD01 has built-in USB-C charging.

The cover for the USB-C port is discretely hidden away on the side of the torch.

I like how there is a little cutout in the aluminium for a fingernail to lift the cover.

Wurkkos HD01 charging

The TIR optic came with protective film to remove.

Wurkkos HD01 closeup-protective-film

There are two strong magnets in the tail.

Wurkkos HD01 closeup-tail

LED, bezel, lens, reflector and beam

The Wurkkos HD01 has a Spotlight (1*HM), a Floodlight (16*CSP1313), an RGB Light (15*RGB) and a Green Laser.

There is TIR optic with a 15 degree beam angle in front of the Spotlight without glass to protect it.

Wurkkos HD01 closeup-emitters

The Floodlight and RGB Light have a textured opaque white diffusion strip.

Wurkkos HD01 side

CCT, CRI, and duv

I have taken Correlated Colour Temperature (CCT) and Colour Rendering Index (CRI, RA of R1-R8) measurements with the torch positioned one metre away from an Opple Light Master Pro III (G3). Low (Floodlight) was too low to detect at one metre.

The CCT is around 5900K, the CRI is around 70 and the Delta u, v is positive (green) for the Spotlight.

The CCT is around 4700, the CRI is around 95 and the Delta u, v is positive (green) for the Floodlight.

The throwy beam produced by the Spotlight has a white hotspot, a slightly green corona, and some spill. There are two artifacts in two corners of the spill. They look like lines.

The beam produced by the Floodlight is very floody, looks slightly green, and does not throw very far.

LED Mode CCT (K) CRI (Ra) x y Duv
Spot Moonlight 5527 70.4 0.3318 0.3536 0.0066
Spot Low 5845 69.7 0.3248 0.3413 0.0036
Spot Medium 5953 69.6 0.3226 0.3387 0.0033
Spot High 6076 69.9 0.3203 0.3354 0.0027
Spot Turbo 6250 70.7 0.3174 0.3297 0.0012
Flood Medium 4665 95.7 0.3570 0.3720 0.0054
Flood High 4731 95.9 0.3545 0.3683 0.0046

Calculate Duv from CIE 1931 xy coordinates

Dimensions and size comparison

Dimensions

I took the following measurements using a digital caliper.

Measurement Unit (mm)
Length 111.26
Width 27.06
Height 22.93

Weight

I took the following measurements using a digital scale.

Weight Unit (g)
Wurkkos HD01 94.94

Size comparison with its competition

My brother kindly loaned the Olight Arkfeld Pro to me to compare (I will do a full review).

The Wurkkos HD01 is shorter than the Olight Arkfeld Pro. The width and height are almost the same.

The pocket clip on the Olight Arkfeld Pro is a true “deep carry” pocket clip.

From left to right: Wurkkos HD01, Olight Arkfeld Pro

Wurkkos HD01, Olight Arkfeld Pro Wurkkos HD01, Olight Arkfeld Pro

Wurkkos HD01, Olight Arkfeld Pro Wurkkos HD01, Olight Arkfeld Pro

I prefer the beam produced by the Spotlight on the Wurkkos HD01. It has a more intense hotspot, a narrower beam, throws further and it looks less green. The Olight Arkfeld Pro produces a floodier and a slightly less intense beam.

Wurkkos HD01, Olight Arkfeld Pro Wurkkos HD01, Olight Arkfeld Pro

User interface

The Wurkkos HD01 has two electronic side switches.

Wurkkos calls the button closest to the Spotlight the “Forward button” and the button closest to the magnetic tail the “Rear button”.

The “Forward button” controls the Green Laser, Floodlight and the RGB Light.

The “Rear button” controls the Spotlight. It also provides access to a Strobe mode (Spotlight + Green Laser).

The Spotlight has three main modes: Low, Medium and High. There are shortcuts to: Moonlight, Turbo and Strobe.

The Floodlight has three main modes: Low, Medium and High.

The RGB Light has a ramping mode and three special modes: Police Flash, RGB Waterfalal and Droplets.

The only time where the Spotlight and the Green Laser are on at the same time is during Strobe mode.

The Spotlight and Floodlight/RGB Light can be operated separately with the “Rear button” and the “Forward button” respectively. You can have both on at the same time and they can be set to different output levels or modes (e.g.

Here is a user interface diagram:

Wurkkos HD01 user-manual-3

State Button Action Result
Locked Any Click or hold Spotlight flashes twice to indicate that the torch is locked.
Off Forward Hold RGB Ramping (memory)
RGB Ramping Forward Two clicks RGB Ramping Flash
RGB Ramping Forward Click RGB Ramping Off
RGB Ramping Flash Forward Two clicks RGB Ramping
Off Forward Click Green Laser On
Green Laser On Forward Click Green Laser Off
Off Forward Two clicks Floodlight On (memory)
Floodlight On Forward Click Floodlight Off
Off Forward Three clicks RGB Light On (Police Flash)
RGB Light On Forward Hold Nothing
RGB Light On Forward Click Off
RGB Light On Forward Two clicks Cycle RGB Light (Police Flash, RGB Waterfall, Droplets)
Off Forward Four clicks Lock
Locked Forward Four clicks Unlock and Green Laser On
Off Forward Five clicks Toggle Breathing Switch On/Off
Off Rear Hold Spotlight On (Moonlight)
Off Rear Click Spotlight On (memory)
Off Rear Two clicks Spotlight On (Turbo)
Off Rear Three clicks Spotlight On (Strobe) + Green Laser
Off Rear Four clicks Lock
Locked Rear Four clicks Unlock and Spotlight On (memory)
Spotlight On Rear Hold Cycle Spotlight (Low, Medium, High)
Spotlight On Rear Click Off

Mode memory

Low, Medium and High are memorised separately for the Spotlight and the Floodlight.

The selected colour for the RGB Light is memorised.

The special mode for RGB Light is not memorised (i.e. Police Flash, RGB Waterfall, Droplets). So you need to do 3C, 2C, 2C to get to the Droplets mode.

Moonlight, Turbo and Strobe are not memorised.

Strobe

Strobe (Spotlight) has an alternating frequency.

Wurkkos HD01 strobe

I measured Strobe with a Zoyi ZT-703S oscilloscope using High Speed mode.

Battery status

The battery status indicators behind the two buttons will display the following for 5 seconds when the torch is turned on:

Wurkkos HD01 closeup-buttons-green Wurkkos HD01 closeup-buttons

Colour Battery level
Green 50% - 100%
Red 10% - 50%
Flashing Red < 10%

The battery status indicators will continue to flash red when the battery level is below 10%.

The battery status indicator are a bit bright when using Moonlight mode.

Low voltage protection

The torch turned off at the end of five different runtime tests.

The user manual states that the torch will turn off when the voltage is below 2.7V.

I have not opened up the HD01 to verify LVP.

Pulse Width Modulation

There is PWM but I did not notice any visible PWM (flickering).

I measured the PWM of the light with a Zoyi ZT-703S oscilloscope.

Spot (Moonlight, Low, Medium, High, Turbo)

Wurkkos HD01 PWM Wurkkos HD01 PWM Wurkkos HD01 PWM Wurkkos HD01 PWM Wurkkos HD01 PWM

Flood (Low, Medium, High)

Wurkkos HD01 PWM Wurkkos HD01 PWM Wurkkos HD01 PWM

What I like about the UI

  • I like how there are shortcuts to Moonlight, Turbo and Strobe for the Spotlight from off. The shortcuts are pretty common. Hold for Moonlight. Two clicks for Turbo. Three clicks for Strobe.

What could be improved

  • I think that the “Forward button” should control the Spotlight and the Green Laser. This is more intuitive because the “Forward button” is closest to the Spotlight and the Green Laser. However, it currently controls the Floodlight, RGB Light and Green Laser.
  • It would be nice if the torch memorised Police Flash, RGB Waterfall or Droplets for the RGB Light so that performing 3C (three clicks) from off would recall the memorised special mode.
  • I wish that the Green Laser did not turn on while the Spotlight is in Strobe mode.
  • A physical rotary switch would simplify the user interface.

Batteries and charging

Battery

The Wurkkos HD01 has a built-in 1200mAh LiPo.

It would be nice if the battery could be easily replaced.

Charging

Power supply: PinePower Desktop USB-C
USB Meter: AVHzY CT-3 (recommended by LiquidRetro)
Room temperature: 13 C

Wurkkos HD01 charging profile

I charged the Wurkkos HD01 after a runtime test had drained the battery to a point where the torch turned off.

It took 1 hour 29 minutes to fully charge the Wurkkos HD01 at a rate of 5V 1A.

The lights around the two buttons are red while charging and they turn green when charging is complete.

Wurkkos HD01 charging-red Wurkkos HD01 charging-green

Power bank

There is no power bank feature.

Power supply compatibility

I tried the following power supplies with the built-in USB-C charger:

Power supply USB Type Protocol Does it charge?
Apple 61W Power Adapter USB-C PD Yes
Apple 20W Power Adapter USB-C PD Yes
Google Pixel Power Adapter USB-C PD Yes
PinePower Desktop USB-C PD Yes
PinePower Desktop USB-A QC Yes
PinePower Desktop USB-A Yes

USB-A to USB-C, and USB-C to USB-C charging works.

Performance

Specifications from the manual:

Mode Moonlight Low Medium High Turbo Strobe
Output (Spot) 1 lm 20 lm 100 lm 450 lm 1200 lm 1200 lm
Output (Flood) 1 lm 25 lm 180 lm
Beam Distance (Spot) 6 m 19 m 51 m 97 m 157 m
Beam Distance (Flood) 1 m 11 m 20 m
Runtime (Spot) 70h 24h 4h 1.3h 1h
Runtime (Flood) 70h 6.5h 2h
Beam Intensity (Spot) 9 cd 94 cd 656 cd 2348 cd 6175 cd
Beam Intensity (Flood) 0.5 cd 30 cd 98 cd

RGB has a runtime of 8 hours.

Green Laser has a runtime of 13 hours.

Lumen measurements

LED Mode Specs Lumens @turn on Lumens @30 sec Lumens @10 min
Spot Moonlight 1
Spot Low 20 16 16 14
Spot Medium 100 101 102 97
Spot High 450 374 358 327
Spot Turbo 1,200 1,040 938 401
Flood Low 1
Flood Medium 25 30 30 29
Flood High 180 215 185 109

Moonlight (Spot) and Low (Flood) are too Low for my DIY lumen tube to detect.

Runtime graphs

I used my own DIY lumen tube with a TSL2591 sensor and forked bmengineer’s project RuTiTe to record runtimes.

Note: Lumen measurements may be off by 10% with my DIY lumen tube.

The room temperature was approximately 13 C.

Spotlight

Wurkkos HD01 spot runtime graph

Wurkkos HD01 first 2 hours spot runtime graph

Wurkkos HD01 first 10 minutes spot runtime graph

Floodlight

Wurkkos HD01 flood runtime graph

Wurkkos HD01 first 2 hours flood runtime graph

Wurkkos HD01 first 10 minutes flood runtime graph

Runtime

Here is a summary of the runtime results:

LED Mode User manual Runtime Turn off
Spot Turbo 1h 59min 12s 1h 0min 13s
Spot High 1h 18min 1h 26min 0s 1h 26min 0s
Spot Medium 4h 5h 41min 15s 5h 41min 15s
Spot Low 24h 10min+ 10min+
Flood High 2h 1h 22min 31s 1h 22min 37s
Flood Medium 6h 30min 6h 30min 39s 6h 30min 39s

“Runtime” is the time until the output reduces to 10% of the output at 30 seconds (as per the ANSI/PLATO FL1 2019 Standard).

“Turn off” is the time until my DIY lumen tube no longer detects more than one lumen.

“+” indicates that the light remained on after recording had stopped.

Moonlight (Spot) and Low (Flood) are too Low for my DIY lumen tube to detect.

High (Flood) fell short of the 2 hours and instead finished after 1 hour 22 minutes.

The runtime results for the Spotlight were pretty close to what Wurkkos claimed.

The output is stable but it would be nice if Wurkkos improved the regulation. I can see that they have tried to maximise the initial lumen output but I personally prefer it when the light output is constant and then it drops toward the end.

Throw

I took lux measurements with a UNI-T UT383BT at 30 seconds.

Spotlight: Moonlight and Low were measured at one metre. Medium, High and Turbo were measured at five metres.

Floodlight: Low was too low to measure at one metre. Medium and High were measured at one metre.

LED Mode Specs (cd) Specs (m) Candela measured (cd) Distance (m)
Spot Moonlight 9 6 6 4
Spot Low 94 19 112 21
Spot Medium 656 51 675 51
Spot High 2,348 97 2,800 105
Spot Turbo 6,175 157 7,600 174
Flood Low 0.5 1
Flood Medium 30 11 15 7
Flood High 98 20 116 21

Beamshots

I went to a local park and aimed the Wurkkos HD01 at a tree 70 metres away while using Turbo (Spot) and High (Flood).

Beamshots were taken using a Sony RX100M2 using 3.2", f3.2, ISO 100, 5000K WB.

Wurkkos HD01 Spot (Turbo)

Wurkkos HD01 Spot Turbo beamshot

Sofirn IF24 Main Light (Turbo)

Sofirn IF24 Main Light Turbo beamshot

Wurkkos HD01 Flood (High)

Wurkkos HD01 Flood High beamshot

Sofirn IF24 Side White Light (Turbo)

Sofirn IF24 Side White Light Turbo beamshot

Conclusion

The Wurkkos HD01 is a bit of an all-in-one flat-style EDC torch.

There are so many features packed into this torch (i.e. Spotlight, Floodlight, RGB Light, Green Laser).

The user interface is complex. It would be better if it had one button and a rotary switch like on the Sofirn IF24 so that there are fewer sequences of clicks to memorise.

The runtime results and beam distances measured were close to what Wurkkos claimed. The runtime for High (Flood) fell short.

The light output looks stable. It did not zig-zag up and down or flicker. But I would love it if Wurkkos improved the driver so that it sustains a constant output instead of gradually dropping over time as the voltage drops.

The Spotlight has a low CRI and a cool white beam. I would love to see a high CRI and a warm white (3000K) emitter used instead.

The Floodlight has a high CRI but a hint of green in the neutral white beam.

Built-in USB-C charging and support for USB-C to USB-C or USB-A to USB-C input is nice.

The Wurkkos HD01 looks like a good alternative to the Olight Arkfeld Pro in terms of features.

Pros:

  • Good build quality.
  • Good beam distance.
  • Good value.
  • Okay runtimes.
  • Slim and compact size for EDC.
  • USB-C charging.
  • Heaps of features.

Cons:

  • Complex user interface.
  • Low CRI Spotlight beam.
  • Two artifacts in the Spotlight beam.
  • Built-in battery.

Price

The Wurkkos HD01 is about US$36 from amazon.com with a 20% promo code at the time of writing.

Product page

Wurkkos HD01 at wurkkos.com

Wurkkos HD01 at amazon.com (affiliate link)

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