Whut?
All its missing is a red led
So you want [let me count…] 3 LEDs?
Has anyone tested charging HD20 with type C-C cables yet?
Has anyone tested reverse-charging an external device from HD20 using a type C-C cable or type C-Lightning cable yet?
On TLF some members reported that some cables refused to work properly, especially when attached to a smart power source with PD protocols (9V, 12V, 20V).
Normally, HD20 should override these protocols as two resistors should always enforce the 5V 2A standard protocol even when using type C-C cables.
I am trying to collate as much information as possible to give Wurkkos a summary for technical improvement (provided that there is an actual problem with HD20 or some cables).
Yeah the design has grown on me. I didn’t like it before but once I got it in person I started to like it.
I don’t have an hd20 yet, but the fc11 does C-C. I have charged mine that way.
Yes me, works perfectly (don’t know the charge current on top of my head).
Type C - C cable works fine. You can pull more than the advertised 1.6A but the voltage sags down. I don’t know what the cuttoff-current is, I could pull more than 2-2.5A (but at about 4V instead of 5)
The light works fine with my Baseus 65W charger (supports a lot of different protocols) and the supplied C-C cable, haven’t tested it with other cables. It just asks for 5V.
They only thing I miss is smooth ramping and the Anduril battery-voltage measurements, otherwise it’s a very capable light! Also the threads could feel more durable when screwing on the magnetic tailcap with a 21700 battery. I like the “feel” more when screwing in one of those batteries in my C8G.
I plan to review it once I can take some beamshots, I wrote some bullet-points down already…
Charging works fine here, got 1.4A so far
Thank you guys. The most important question is, will HD20 charge with a type C-C cable properly on PowerDelivery chargers? I am not talking about the type A-C cable (big plug - small plug) which seems to work on every type A charger without problems. Can you please also test the powerbank feature using a type C-C cable. Some smartphones already use a USB-C port or Apple's new iPad Pro. Any feedback will be helpful. I hope I find some time to testing my HD20 soon, too.
Yes, I charge everything with the Baseus 65W PD charger and a Type C - C cable (phone, laptop, camera, HD20) 
Works like a charm, charges my Xiaomi Mi A1 with a Type C - Type C cable just fine. My Type C meter measures 4.6V at the end of the cable (so a bit on the low side) at 1.45A. The phone displays “Charging rapidly”
Received my Wurkkos HD20 from Amazon US yesterday using the 20% discount from the BLF "HD20 Sales Thread". Thank you Wurkkos and Lux-Perpetua for another interesting and unique light.
Using USB-C to USB-C cables known to be of high quality, the Wurkkos HD20 would only charge from just one of my five PowerDelivery (PD) chargers using the charger's USB-C port.
Only the "Anker Model A2321" (120 VAC input) charger with PD would charge the Wurkkos HD20 using the USB-C port on the charger. My inline USB meter indicated that the charger's USB-C port supplied the included battery (which was discharged to 3.47 VDC as delivered) with 4.96 VDC at a starting current of 2.10 A which tapered off until charging terminated where the battery measured 4.14 VDC when out of the light using a multimeter after a short rest.
I also have an "Anker Model A2625" (120 VAC input) PD charger and an "Anker Model A2229" (12/24 VDC input) PD charger and neither of those would charge the Wurkkos HD20 using the charger's USB-C port.
I have two different types of USB-C PD (120 VAC input) chargers from Apple for my MacBook PRO (charger Model A1718) and for my MacBook Air (charger Model A1882) and neither of those would charge the Wurkkos HD20 using the charger's USB-C port.
Curious if you always used the inline USB meter to determine that the other PD chargers were not charging on USB-C?
I’m not sure how inline USB current meters handle PD protocols. If you take the USB current meter out of the equation, do you get different results?
I tested both "with and without" the inline USB meter to be sure the meter was not affecting the results.
Just received 2x HD20’s and it’s just straight out unattractive and the weight on my forehead is too much. It’s pushing the skin down and feels heavy on my eyes.
I’ll certainly not be selling this model, very disappointing
The design looks cheap, not liking the shiny ano, no knurling as it’s all smooth but that has been on all of the Wurkkos models.
Get rid of the powerbank feature, give it magnetic charging and some proper cooling fins like on the Skilhunt H04 RC, it would also shed some weight. Sofirn/Wurkkos could be so much more then a budget brand if they put more effort into the design.
Thumbs up for trying something different but I can’t sell this at these prices. Cost the same as a dealer to get the C8F. I bought it to try just in case.
Maybe Wurkkos should make their own version of the Skilhunt H04F RC that has a diffuser lens that’s fitted on a hinge. Skilhunt failed on their model with the hinge of the diffuser reflecting light into your eyes.
Everyone has been wanting the SP40 with a 45° tir lens so maybe Wurkkos should of built something like that.
As a flashlight it’s okay, but 4 leds and a tir lens would still be way better and also helps with the weight.
After my previous post, I tested the five different types of USB-C PowerDelivery (PD) chargers I own to charge a Sofirn LT1 Lantern that has the newest Rev. 5.0 driver board which supports USB-C to USB-C charging.
All five PD chargers were able to charge the Sofirn LT1 Lantern using a USB-C to USB-C cable.
Only one of the five PD chargers was able to charge the Wurkkos HD20 using a USB-C to USB-C cable.
My belief is that the USB-C port on the Wurkkos HD20 is not implemented correctly for USB-C to USB-C charging.
Lumens measured at 30s with a 40T
Turbo
Both - 1520
Spot - 1070
Flood - 565
Advertised
Both - 2000
Spot - 1300
Flood - 700
I asked my wife “what do you think of this new flashlight?” she said “It’s ugly and looks cheap”
I don't mean to disagree but how about advertising it more as a "tool lamp" which could also be used as a headlamp?
Any suggestions how it should look like instead? Shiny ano, yes I agree with that. A matte anodizing like Convoy's or Armytek's would be awesome but I don't know how it could be realized quickly. Maybe that's a point for mid-/longterm improvement on Sofirn's/Wurkkos's lights. What's wrong with the powerbank feature, does it increase the size of the flashlight? Magnetic charging is a very disputable, controversial idea as there's a large group of people who refuse that for reasons of proprietary technology. A simple USB-cable is something that most people always have available somewhere. Just my opinion of course. Moreover, magnetic charging would require Sofirn/Wurkkos to put more efforts in design changes. I don't know if it was easy to highlight the benefits over the downsides.
I have been discussing TIR lenses with Sofirn and Wurkkos several times. It seems these are a bit difficult to get or to produce (by their own injection molding factory?). I recommended buying third-party lenses from Carclo UK oder LEDiL. Maybe this will become an option in the near future, who knows. A headlamp with 4 LED dies underneath a frosted/microlensed single TIR lens is on my mind already. Osram's LE RTDUW S2WP could emit white, blue, red and green while being extremely compact in size. I try to work on a design concept already. :-)
Thank you so much for your feedback. That might be very helpful to pinpoint the root cause. Maybe Wurkkos can let their engineers have a look at both drivers (LT1 and HD20) to check for any differences with the resistors placed onto the USB-C circuitry.
I'm not sure the comparison to the Sofirn LT1 Lantern will be that useful to Wurkkos.
The Sofirn LT1 Lantern seems to be able to be reliably charged using a USB-C to USB-C cable with any USB-C PD charger but it does not have the capability to also function as a power bank and charge other devices like the Wurkkos HD20 is able to do.
Being able to both be charged and also be able to charge other devices has to be much more complicated to implement and I compliment Wurkkos for attempting this.