This is the Wurkkos HD04 flashlight, a small flashlight with rotating head, glow in the dark plastic body, high CRI flood 4000K emitter, throw cool white LED and RGB!
• My opinion:
The HD04 is a very fun and useful flashlight, I am glad this flashlight has useful features for a nice price, as some recent Wurkkos flashlights have disappointed me, the HD04 is not one of them. I could only suggest to use the SFT25R on the “throw” cool white emitter, as this would increase a lot the throw distance.
• Pros:
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4000K 90 CRI floodlight
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Buck driver
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Potted USB-C
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Smooth RGB ramp
• Cons:
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TIR can be scratched easily
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The black body almost doesn’t glow in the dark
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Doesn’t use a standard battery type (14500, 10440…)
• Box contents
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HD04
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Lanyard
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Keychain carabiner
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USB-C charging cable
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User Manual
• Price
The Wurkkos HD04 is currently priced at $25.99 on the Wurkkos Official Website
• Body and build quality
Colors/Material Options: The HD04 has an aluminum head with gray anodizing, it is available in 3 plastic colors: cyan, white and black (featured in this review)
Material: The head part is made is made of 6061-T6 aluminum, the main body is made of clear plastic.
Main body: The main body is entirely made of clear plastic, it’s very smooth, with there only being a small knurling near the edges. The main body has a Glow in the dark feature, the plastic has a powder that glows in the dark when previous charged with luminous energy, like sunlight, it’s not very bright though, the main reason is probably the black plastic.
Clip: The clip is also made of plastic and has rubber ends for better grip. It’s obviously not as resistant as a metal clip, but the plastic one seems pretty resistant as it’s pretty thick.
Tail stand and rolling: The flashlight has a rectangular box shape, so it will stand on almost every position, it does not roll.
AUX lights: It features a RGB light that functions as an AUX light and also a battery indicator when you press the button. The RGB light cannot be used “always ON” to find the flashlight in the dark, but the main body **glows in the dark.
Rotating head: The flashlight head can rotate 180° horizontally and 95° vertically, this is good especially when you combine this with the magnetic tail, so that you can get light where you need without holding the flashlight with your hands.
Buttons: The HD04 has 2 buttons, both of them being e-switches with aluminum caps on top of it. One of them is to turn the flashlight ON/OFF and the other one for changing the illumination mode (Cool white, Warm flood white or RGB).
Bezel: This flashlight has no bezel, so be extra careful with scratches.
Water Resistance: It has IPX6 ingress rating, the water-proofing on the main body is made by a rubber gasket that goes around all the perimeter of the plastic body, the head hinge has o-rings to prevent water ingress. The main body can be easily accessed by removing the 4 screws on it.
Magnets: The tail of the flashlight has a big magnet, it can be easily removed by unscrewing the 4 screws on the main body.
Size comparison: Here is a size comparison, on the left it is the Armytek ELF C1, on the middle the Wurkkos HD04 and on the right the Convoy S2+
• Weight and size
Weight:
HD04 total weight: 55.8g
Size: 34.0mm (length) x 24mm (width – biggest width with clip) x 71.0mm (height)
• Battery, runtime, and charging
Battery: The HD04 uses a single LiPo battery with 600mAh, the capacity is OK, not awesome, but also not bad. It does not use a easy to replace size as 14500 or 18650, but rather a more specific format.
Battery Indicator: You can access battery indicator by clicking on the mode button while the flashlight is OFF. The RGB light will turn ON and indicate the battery level is it follows:
| Color | Battery level |
|---|---|
| Green | 100% - 75% |
| Flashing Green | 75% - 50% |
| Red | 50% - 25% |
| Flashing Red | < 25% |
Charging: It has a potted USB-C port on the head at the opposite side of the LEDs, charging does not take too long, taking around 1h20min to 1h40min using a 5V1A power source.
• Modes, Runtimes, Throw, Candela:
Modes: The HD04 has 6 modes on the Cool white “throw” beam, 4 modes on the 4000K “flood” light and a smooth RGB ramp, the advertised specs are as it follows:
Cool White “Spotlight” light:
| Mode | Brightness | Runtime |
|---|---|---|
| Turbo | 750 - 260 lumens | 1 min - 1h20min |
| High | 375 - 260 - 150 lumens | 5min - 35min - 150min |
| Medium | 110 lumens | 4h |
| Low | 10 lumens | 38h |
| Moonlight | 1 lumen | 86h |
4000K “flood” light:
| Mode | Brightness | Runtime |
|---|---|---|
| High | 450 - 150 lumens | 3min - 1h30min |
| Medium | 100 lumens | 2h50min |
| Low | 10 lumens | 29h |
| Moonlight | 1 lumen | 75h |
Throw: The flashlight is rated to throw about 120m with the cool white beam, it actually is useable for like around 80m, SFT25R probably would make a much better throw on this flashlight, but 80m is acceptable.
• Emitter, reflector and CRI:
Emitter: The main cool white emitter is SST20 in 6500K, the 4000K emitter is not stated, but it is stated that it is 90 CRI. This SST20 6500K emitter has a little bit of green/yellow tint on lower brightness levels, on higher ones it gets more of the blue tint; the 4000K LED is good and neutral, has a little more of a yellow tint than my 4000K 519a flashlights, but it seems to be very good.
Lens: The flashlight does not have glass lens in front of the TIR.
Reflector/TIR: It has a smooth TIR on the cool white LED, a beaded TIR on the RGB light and a beaded/frosted TIR in front of the 4000K white.
Beam profile: The cool white beam has a defined hotspot with a smooth transition to a dimmer spill. The 4000K beam and RGB have a very floody beam, with the RGB having a lot of artifacts when pointing it to a wall from up close.
CRI: The cool white emitter is standard CRI, but the 4000K flood emitter is claimed to be 90 CRI
• Driver and UI
Driver: The HD04 uses a constant current buck driver, so expect a constant output for almost all the runtime of this flashlight! Very good to see Wurkkos using regulated drivers on their flashlights. I didn’t notice any PWM on my tests.
UI: The UI is pretty simple to use, one button is the “light button” and will turn the flashlight ON/OFF, and, if ON, holding it will cicle through the brightness levels, double click goes to turbo - double clicking again goes to moonlight, triple click (Cool white only) goes to strobe. The other button is the “mode button” it will access battery check if pressed when the flashlight is OFF, and, if ON, pressing it will cycle between: cool white - RGB - 4000K white.
Mode Memory: The flashlight will memorize the last mode, brightness setting and RGB color used, except “Turbo” or “moonlight”.
Temperature Control: When the flashlight gets too hot, the output will be reduced to prevent driver and LED damage.
Lockout: Lockout can be accessed by holding both buttons at the same time until the main light flashes 2 times, same for unlocking. While locked the cool white low can be accessed momentarily by holding the light button (not the mode one).
Turbo: The cool white turbo has 750 lumens, a nice output for this tiny light. The 4000K has only 450 lumens, could be more, but this brightness is still good.
Moonlight: The moonlight modes are decent, 1 lumen is nice to have when needed, thought it seems to be a bit brighter than 1 lumen.
Blinkies: The cool white mode has strobe by triple clicking, and the RGB mode has solid color flashing, rainbow, red/blue flashing and slow rainbow fading, all accessed by double clicking while on RGB mode.
A special thanks to Wurkkos for sending this flashlight for me to review!
*I am not being paid to do this review, everything here is my honest opinion.
Thank you for reading my review <3