I literally had an AliExpress order take 90 days to reach me, from March to June. I could still see it shuttling between shipping facilities, though – presumably while the shippers were looking for a route that was still open – until the tracking number expired on day 79. The fact that you’re not getting any updates would make me a bit nervous.
I track my orders on Numbers (on Mac) to gauge what order is where.
the average shipping speed across ebay (CN vendor), AliExpress, and Banggood is about 17 days from payment to mailbox. But there are also a few really delayed shipments that are beyond 45 days now
One shipment came in after 61 days (tracking stopped worked the week before delivery), one item is “in transit” for almost 48 days now with no updates at all.
I would say the system still works, but with mixed results. Guess it is exactly as pre-pandemic
Sorry, ran out of time - modding a Nitenumen TK35 with a SST-40 5000K, FET+1 running my Anduril version. Looks like it should do about 150 kcd on the SST-40 with dome.
Think I picked a light out though I could quickly mod with the XM-L3 - a modded JM07 with an OP reflector. Probably has a FET+1 driver. Might try a FT03 though - nice comparison with a SST-40, though the SST-40 will probably out throw the XM-L3.
So the SST-40 can pull bout 9 amps or so. Interesting to see what the 5A rated XM-L3 can pull.
Seem there isn’t that difference betwin SST20 JB4 BIN and JA3.
DUV of this one should be under the BBL instead of positive like your measure.
I think DUV will increase again with lens.
So they really sell the exact Bin declared? These others JA3 Bin tested ON E07 are below BBL
It looks decent, least to me. It's a CW, which I don't use often, but the beam isn't that bad.
In an old ThorFire JM07, 43 mm head diam, OP reflector, with a FET+1 setup, Noctigon MCPCB, 20 AWG LED wires, UCL/p lens, spring bypasses: on a GOLISI at 4.20V, measured 7.75 amps
Maukka calibrated lumens: 2010 at start, 1940 at 30 secs, and throw: 70 kcd
It's about matching the output of a SST-40 in lumens, but the SST-40 draws more amps (at ~9 amps), so...
The throw isn't bad - in comparison, the reflector diam matches a FT03 Mini that I tested at 95 kcd w/SST-40, but the FT03 Mini has a SMO reflector, and again, draws about 9 amps.
I'm pleasantly surprised - didn't expect it to be as good as an SST-40, but actually it's better because it basically matched it at lower amps. One noticeable advantage is there's less output drop over the first 30 secs.
Based on the yellow bubble design, I'd expect the 5000K-6000K beam to be uglier
I need some advice.
I am looking for a 17mm driver that will work with li ion and lithium batteries (16340 and cr123). No strobe, lo > hi, with or without memory, 1-4 modes.
I’ve already searched the kd, but I don’t know if and which one will be good.
Based on this by HKJ, a CR123 is roughly equivalent to 2xAA. So if you find a 2xAA boost driver that can go up to lithium ion voltages (4.2v) then you’re set.
This one has 4 mode groups but only says it goes up to 3.3v. I’d bet it would survive a 16340 though. Just a guess… If the battery voltage is more than the LED Vf, then it’ll probably be direct drive though.
Both those driver look like PAM2803 based drivers. The first one that gchart linked has a current limiting resistor (R270) so it should work with both types of batteries fine.
The second link, I think from the pics has a (R120) current limiting resistor, so it should work also but at a higher output with a Li-ion than the first one.
I’m just guessing from the pics and what I can see, someone that has one would need to confirm that or just buy a couple and let us know what you find out.
That first one doesn’t appear to be a PAM2803. Outside of the FET, the only non-passive component appears to be a single SOT23-6 which could be a PAM2803, but then what would control the modes (Low > High > Strobe)? I’m guessing it’s a dedicated flashlight driver chip.
As moderator007 said, second one does look like it could be a PAM2803 which is advertised to be safe up to 6.0 volts. Worth a shot (well, assuming you can spare the $3.57 if it happens to fry).