【convoy】H4 and B35AM options are updated

+1 for Luminus should make 95 CRI SST-40, and that could be sold like sugar.

Unfortunately, SST-20 is somewhat limited in output, but still, it is reasonable to drive it up to 3.5A (I would not go over that for efficiency reasons, but based on BLF measurements, it is still safe at 5A).

Also, Luminus should make 95 CRI 4500K, that would be quite something :slight_smile:

(I already gave away two Convoy S2+ with SST-20 4000K installed for friends, as they love it.)

With the new C8 driver you could also build a 3v XHP50.2 lights. I think the 3v LED is rated for 6amps.
Id love to see some pics of the new driver and will you sell it separately?

Agreed with high CRI 4500k or 5000k SST20 - 4000k is just a little tooooo warm.

CRI is not everything. Number one is tint. In a flashlight, it’s better to have a 80CRI with the right tint than a lower efficiency CRI95. Those I would reserve for interior lighting, where a bit extra power consumption isn’t an issue. Currently I like the XML2 T6 5D4 a lot (from Simon), slightly rosey, but not too much. Excellent!

Is there another to way to buy this new C8 with ramping UI without using aliexpress? I can’t update any of my information on their site.

Am I the only one who dont understand how new “ramping” firmware works? Can someone explain? Light starts in max mode. Then two taps brings 1.5A mode, and 3 taps brings strobe (or anything else from function mode selection)? I though ramping is stepless selection of brightness, but maybe I dont understand something…

Normally ramping works by holding down the power button, light will “ramp” from minimum to maximum brightness, once at maximum it goes in the reverse direction max > min.

You simply let go of the switch when desired brightness is reached.

That’s very much a matter of opinion. 80 CRI is 400% more color error than 95 and usually results in an output difference around 20. I’ll give up a lot of efficiency for 400 less color error.

Tint versus CRI is more subtle. 95 CRI with a Duv of 0.01 would be horrible. 95 CRI with a CCT of 9000K would be horrible. On the other hand, I’d take a little more green, as found in an SST-20 FB4 or usually seen in the 4000K LH351D for 90+ CRI versus a 70 CRI XP-L HI 5D, which has a beautiful white wall tint. I’d similarly take 4000K and 95 CRI where I wanted 5000K if I had to drop to 70 CRI for 5000K.

When I go outside with my 80 CRI lights (current most-used: Thrunite TC15 with 80 CRI, 4500K XHP35 HI), everything looks a bit flat. Details require more focus to resolve. Some people don’t seem to notice this as much, but I certainly do. Since a suitable 90 CRI XHP35 HI (or other throwy 12V emitter) hasn’t appeared in single quantities, I’m thinking of building something else to fill the TC15’s role.

I’ve organised a small group buy a time ago, four of the lights were 4000K Ra:98 R9:97 with a duv of 0.001 at 350lm. The buyers were no hardcore flashoholics. And… none of them did really like them. Three compared it to the XPL-HI 5D 80CRI from a Emisar D4 and proffered it over the high-cri light which they said was ugly greenish. So yeah, tint is of most importance.

Small relativisation: a not overly positive duv at warmer CCT’s (4000K and below), let’s say 219C 4K level, dlooks actually good in woodlands, for obvious reasons. Trees are not rosy.

“My small sample size anecdote is irrefutable proof that others’ preferences are wrong”

What you like most is completely independent from what works best. I think the tint of the Optisolis is ugly compared to a lot of lights, but its absolutely undeniable that it offers better color accuracy and identification.

in production now ,about one month

just 3rd mode as an example ,i will take time to make it more comprehensive

yes,in production ,i need some more time



hoping the headlamp is soon……

yes,i have 2 sizes,
one 17mm
one 22mm
and i’ll have 20mm later
i will add the driver in my store today

you can use paypal ,too
you can send private message to me

that’s easy ,first ,turn on the flashlight,second ,tap the button 5 times,then you can enter into ramping

this operation is for side button ,but this is tail button ,so it’s different

Hi Simon ,what about XHP50.2 6V and 3V in 5000K range ?

what about s2+, also in production ?