I'm building a new TITANIUM flashlight, I'd love your feedback!

pic from here, not mine:
Screen Shot 2024-12-23 at 6.05.58 PM.png


and a video from the designer:
the UI has a Surefire Style momentary 2 mode configuration option.. around the 7 minute mark in the video...
 
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Ordering a R8 Nichia 519 in stonewashed titanium for Christmas.

Thinking about the reflector version. Also, would it be better to get the LED de-domed (making it a 3900K tint.)?

Just ordered it. Can't wait.
 
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would it be better to get the LED de-domed
I do prefer the Tint of DeDomed 519a, however I only like DeDomed 519a in lights that use a diffusing Tir. I dont know the type of Tir Exceed uses, and have not seen a photo of the beam w DeDomed 519a.

here is a Domed LED and a DeDomed LED in an HDS reflector:
8jyaX3Y.png

I notice the corona around the DeDomed hotspot on the right, has a sort of starbust pattern, and the hotspot itself is smaller, and with undefined borders..

A Domed 519a has a much nicer round hotspot, when using a reflector:
6aPLMoA.jpeg


this is what the beam looks like with a diffusing Tir (it is a standard 20mm diameter Pebbled Tir):
YYb8Z7W.jpeg

Im waiting to see what the beam looks like in a Rampant, with a DeDomed 519a, in both a reflector, and with the Tir they use. I hope people will share photos, once they receive their lights.

I dont know if the Rampant could fit a 20mm Pebbled Tir, if it does, then I would say yes to DeDomed 519a
 
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Ordering a R8 Nichia 519 in stonewashed titanium for Christmas.

Thinking about the reflector version. Also, would it be better to get the LED de-domed (making it a 3900K tint.)?


I would say yes because I prefer a warmer tint and more focused beam of a reflector. This is a 519A 4500k before and after dedoming, it's in a Dawson Machine Works Diamond Slim.
 

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I've just returned to cpf after a long lost period. Actually chatted with Josh way back when he announced he was in plans to make a torch, didn't even think about checking out cpf at the time. I have an R4 on the way and I'm glad to hear the dedome 519a with tir looks good.
 
HDS is known for excellent design. I’ve never read that it is a tall flashlight for the battery size, yet the ratio of battery length to overall length is about .368, compared to this R4, which seems to be .455.

That is to say only about one third of an HDS is battery length, while this R4 is a little less than half. At least that is what I came up with quickly.

Interesting that the R8 has about 4 times the battery capacity, yet is only .62 inches longer, with a battery to body ratio of about .524
 
Some of the other chip options I have considered are:
  • Samsung LH351D 4000K
  • Nichia 519A 4500K
  • Nichia E21A
However the SST40 is tried and true, just not higher CRI like these options. What would most of you all prefer?

Sorry for all the questions...
I am a lighting DIY in HK, I helped my friend make a jewelry lighting fixture this October which required high CRI LEDs. We found a 95+ CRI LEDs from mainland China, which I think is pretty good. What I mean is that as this technology matures, there are more brands to choose from.
 
Lowest light level requires double click; not really part of the ramping mode. The jump in lumens between lowest and second lowest is substantial. One can perform a single-click to ramp in steps. Ramping is quick; will see how it works in the field tonight.

Beautiful beam 519A cast. Highest level radiates heat through the sapphire; not planning to keep on high for very long. I don't remember reading anything about thermal step down?

USB-C battery provided came at 3.8V. Nice.

Truly exciting to be able to play with this new design.
 
Definitely keeping this flashlight. Surprisingly good throw from the 519A, along with bountiful hotspot. Lightweight gloves make the rocker switch more of a challenge but doable. The middle of the night venturing forth with fully night adapted eyes was ok in the sense the lowest light level was not too glaring, though I am used to a much dimmer light source (switch glow from an Emisar).

Looks like a titanium cover on the switch, very nice. Activating with the side of the thumb joint yields a good momentary. I plan on using this a lot and fully expect the mechanical switch to be long lasting, though can't help wondering if Exceed Designs will come out with a tool to unscrew the internal lock ring and offer replacement switches. So nice that there is no tail cap.
 
Definitely keeping this flashlight. Surprisingly good throw from the 519A, along with bountiful hotspot. Lightweight gloves make the rocker switch more of a challenge but doable. The middle of the night venturing forth with fully night adapted eyes was ok in the sense the lowest light level was not too glaring, though I am used to a much dimmer light source (switch glow from an Emisar).

Looks like a titanium cover on the switch, very nice. Activating with the side of the thumb joint yields a good momentary. I plan on using this a lot and fully expect the mechanical switch to be long lasting, though can't help wondering if Exceed Designs will come out with a tool to unscrew the internal lock ring and offer replacement switches. So nice that there is no tail cap.
I know he has tritium slots on his list of 'upgrades' so I'm hoping he will make a new tailcap with slot for us to switch them out.
 
Any sense of parasitic power draw, or does the rear button totally cut power?
I wonder how many spare parts like driver boards might be available. I'm remembering my original HDS EDC became unsupported.
 
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