The flashlight was sent to me by Wuben for review.
Since the Wuben D1 is still in the pre-production phase, I don't have its commercial packaging to display.
Here's the included accessories that come with the flashlight:
- Adjustable wrist lanyard.
- 2 x replacement o-rings.
- A USB-C charge / discharge cable.
The D1 is an e-switch operated EDC flashlight.
It comes with a flat black anodization and an excellent finish.
The body and tail of the light has an interesting pattern applied to them.
The e-switch is mounted in the side of the head and is backlit (blue and red).
The D1 uses a polished metal front bezel and uses AR coated lens.
The head houses the TIR lens along with the Osram P9 emitter.
The driver is press fit and glued in the rear of the head.
It's worth noting that the head is glued to the body. I took it apart using a pair of strap wrenches.
The tail of the flashlight is completely flat, which allows it to tailstand.
A large copper spring along with a strong magnet are placed into the D1's tail.
The rear threads are anodized and cleanly cut.
Thanks to the anodization, the flashlight can be mechanically locked out.
The head's threads are also anodized, but bear in mind that by default they are glued.
The Wuben D1 comes with a head-mounted bidirectional pocket clip.
Here's a side photo of the clip.
Overall it provides great retention and its design allows for deep pocket carrying.
The flashlight comes with a USB-C rechargeable 18650 battery rated with 3400mAh of capacity.
A special USB-C to USB-A dongle arrived with the flashlight that can be used to charge and discharge the cell.
This means that the 18650 cell can be used an emergency powerbank.
Here's a pic showing 1A being drawn from the cell using the included dongle.
An indicator LED is included at the top of the battery.
While charging it will shine in red, while blue is shown while in discharge/powerbank mode.
User Interface
Here's all the supported actions supported by the flashlight's firmware.
Turn on/off: Single press.
Mode cycle: Long press ( Moonlight > Low > Mid > High > Moonlight > ... )
Moonlight quick-access: Long press while off.
High quick-access: Double press while turned on.
Strobe: Double press while turned off or while in High.
SOS: Double press while in Strobe.
Enable / Disable locator LED: Triple press while off.
Lock / Unlock: Quadruple press while off.
Mode memory is present.
The Wuben D1 does have Low Voltage Warning and Low Voltage Protection, which gets triggered at 2.8V
Output
Here's my output measurements along with the current draw per each output level.
As can be seen, the Wuben D1 pushes more than 1200 lumen at its highest output mode.
Since this is an engineering sample, I'm not able to guarantee that the production modes will implement this mode spacing and output.
I also measured the parasitic drain of the flashlight.
Locator LED off: 28μΑ
Locator LED on: 1mA
Even though the parasitic drain with the locator LED off is excellent, I noticed that the flashlight will draw 1mA while the indicator LED is on.
To me, it seems that something is misconfigured with the flashlight's MCU, as we should be seeing a much lower parasitic drain when using the indicator LED.
I've made sure to report this problem to the manufacturer so that it's corrected before the public release of the flashlight.
Power Regulation
Here's a power regulation graph I created for the D1.
What we can see in the graph:
- High's output is linearly affected by the input voltage
- Mid, Low, and Moonlight is fully regulated for the whole span of the battery's life
Wall beamshots
Here's a GIF with some wall beamshots to demonstrate the output level spacing.
PWM
No PWM is visible at any mode.
Here's a shot of moonlight at a fixed shutter speed (1/15s)
Conclusion
Overall I found the Wuben D1 to be a great EDC flashlight.
Its design is compact, the mode spacing is excellent and the TIR lens produces a great combination of flood and throw.
