Fullwave UV LED Flashlight Prototype Showcase 

I'm ready to order two as soon as you are in production.

Amazing! Switch placement is good! I would opt for no illumination when out of use for the switches, and probably a red for in use. Big battery is a big yes for me. Lots of nice features here!

Beautiful work, Raymond. Congratulations on this. Some shutoff for the always-on power buttons would be useful, as mentioned, but if backing off of the tail cap is sufficient, perhaps that's all that's needed. As far as order, my brain will always be looking for LW-MW-SW, left to right. But if it was any other order, it might take a whole 10 minutes to permanently acclimate. Since the 32650 is the same length as an 18650 or 21650, an available adapter tube for each would be easy and useful since we're all awash with those cells already. I suspect everyone would be more comfortable at a show or in the field with a spare, charged battery. We did not see the business end of this flashlight, filtered or not?

"Fullwave UV LED Flashlight", I think there should be a rethink on this name, perhaps triwave or three band ? Someone may make a 220-370nm LED or something on day ? I certainly would like one.

WAAAAAAANNNNTTT!!!! I can't believe we are now truly in the era of fully solid-state panchromatic ultraviolet illumination. Wow. How are you filtering though? A ZWB3 for the SW and MW will block a lot of the 365 LW and heat up fast with probably half the radiated power being absorbed in the filter, while a ZWB2 will absorb all the SW and most of the MW only transmitting the LW. Is it a new special dichroic?

Wow....will these really be available soon!?? How much would such a thing be?

Fantastic Raymond. I like the big battery & especially with USB charging. I hope I can own one soon please.

Hey Raymond, cool design, love it. question: - was 3 color piece with the willemite from the red cloud mine? Great for demo button: - prefer S/M/L configuration. easiest to remember, although understand M/S/L config and would likely get used to it over time (depending on frequency of use) - colors, understand and like rationale of G/R, but would definitely be annoyed of effect on night vision with green - prefer alternative of bright red = on, red light shuts off with timer. but could be confusing still. If lamp on and you press button after red indicator has turned off, does lamp stay on or click off? would prefer to use only redlights to maintain night vision considerations on button design: 1) add a timed accelerometer circuit. When switch turned on initially, bright red sustained light for all frequencies that are turned on. after x seconds, button indicator lights fade to dim red (but still easily noticed in the dark). after additional x seconds, all indicator lights turn off (while lamp remains on). at anytime, you can "shake" the light, accelerometer turns indicator lights back on to bright red, then repeats cycle down. push of any button simultaneously toggles that frequency on/off and reinitiates bright red light cycle. Downside, added cost of accelerometer circuit 2) same as above, except: a) no accelerometer switch function. b) for button, if you push a button when lamp in on, lamp remains on after action, but indicator state goes from bright/dim/off -> bright. with a second press, lamp toggles to off. if you push a button when lamp in off, lamp toggles to on and indicator state goes to bright (initiating dimming sequence). admittedly, these suggestions violate a basic design principle of "don't make me think" and could lead to confusion for those unable or unwilling to read instructions (98% or world population now), but for a person using this in the field somewhat regularly, could provide quick and useful information on "status" while maintaining an optimum user experience at night.

A strobe mode for phosphorescence could be an excellent feature.

Personally the buttons in order would be nice (short mid long) and yes to the larger battery if possible with usbc fast charging, when would it be ready for public purchase? And at what estimated price point? And maybe color red for off and green bulb is active Thanks

I accidentally discovered this video and delighted with your creativity! The magnificent idea of creating a UV flashlight of a wide spectrum with adjustable intensity. It would be ideal to increase the power of short ,mid -wave LEDs and also equip them with smooth adjustment. Then the scope of use of a flashlight would expand. Resin curing, disinfecting surfaces. Also on the side surface you can place an additional emitter of the visible range so that the flashlight can be used not only to observe fluorescent objects. To activate such a emitter, add another button. The backlighting buttons should be less bright. In the dark, this can interfere with observation. It is necessary to ensure the ability to completely turn off the backlight at all. It is also good to have a lock mode. The size of the battery 26650 is correct.

Offer these to MINE OWNERS at a discount and we will get the word out for you! Button are fine as is, I realize which are used more, but low, med, high are ergonomic and don't require thought, and can be done in the dark WITHOUT looking at your hand. It is hard to photograph under UV - this would really help!

How is this project going? I will gladly buy a pre-production to test for you

Super cool. Just some ideas you may have already thought about but with LED lights one thing that always bugs me is a brighter hotspot in center so if you can find a way to offer a more diffused beam projection - even better! I think I heard something about orange-peel reflectors being better for that(?) Another idea is the ability to "zoom/focus" the beam out. Perhaps a workaround for hotspots. May also be cool to offer a version which uses three mini knob-switched potentiometers which allow you to independently fade each of the three ranges for fine tuning. People like to twiddle knobs. Taking that to the next level would be a demo mode which automatically faded / flashed between all three. I have also used a white strobe with fluorescent minerals before and it makes the rocks look like they are pulsing. Crazy stuff. Might offer a larger chassis version for more electronics and also a stripped down model with less features for lower cost.

Just discovered you while looking for UV flashlights with dichroic lenses, when will you put those on sale on your website (I mean ready to ship with dichroic lens already installed, not preorder)?

Would love to have something like this! The ramping seems especially useful, as it's always a weird posing act with different flashlights when I want to view samples that react to different wavelengths, with my longwave often overpowering the others in intensity. Are the green lights always on when not in use or is there an overall power toggle? I'm not a fan of green LED's in the dark. While they preserve more nightvision than blue light, they don't work nearly as well as red light. I'd almost prefer the buttons to be phosphorescent and maybe only red when active. As it currently is, I'd likely be covering my buttons with electrical tape and maybe adding single pinhole pricks over each button just to minimize the visibility of the button lights. IDEALLY, I'd prefer no indicator lights (or only temporary indicators) and just different colored phosphorescent buttons (or even potentiometer knobs! :P). Orange, green, and aqua, mirroring UV wavelength to visible wavelength counterparts. Though I do see the appeal for the indicator lights for charging purposes. Button positioning is fine. I prefer the idea of midwave being in the middle just for intuitive use when sharing with people who aren't into the hobby, but that's not a deal-breaker for me. As for battery type, I'd go with the highest capacity. While 18650's are my most commonly owned, I also have 21700's and 26650's, I imagine anyone wanting to use something this specialized though would be willing to invest in whatever battery type it took, so long as it's commonly available for purchase at the popular battery retail sites.

Is there a way to know when they’re out in production for sale? Maybe an email or something? Definitely grabbing one when they’re ready. Love it. Thanks for the great video. 🙏🤙

It would be amazing if this were upgraded from a 26650 to a 26800 battery. At the very least, an extension tube that would allow use of a 26800 would be great. I love usb charging, but it would be nice if the usb port was built into the threada of the tube, sealed BEHIND the oring. A bit more inconvenient, but much better at retaining the water resistance over time. If you can't change the port posiy, then please provide a replacement rubber plug for the port. I love the auxiliary lights on the switches! The way they function as a charge percentage indicator is wonderful! As well as the way the indicated which channels are on. I hope the green isn't too bright at night though. Green is the color of eyes are most sensitive to. Other wise, I'll be buying this light one releases no matter what!

I noticed in the video that the light is concentrated and not evened out on the subjects. Will this affect showing high spots in the photo images like a flare up?

the only concern i can immediately think of: I really do enjoy USB recharging (especially USB-C) but often times that means that if your battery dies, you have to sit and wait for it to recharge. Most lights that recharge this way dont have standard battery connections that allow one to just swap in a fresh new 18650/26650 battery. Can this run while charging? That could be a neat feature. Is there a lockout option where one can turn the light off completely so the LEDs arent on when a person is traveling? Those LEDs being on all the time would drain the battery after a week or so of storage. some flashlights i have also have illuminated buttons and i have to turn the battery end cap to disconnect it so they wont be dead next time I want to use them.

There’s always the Tesla 4680 cell that could be used 😉