[1900k edition is in!] WTS: 1900k-5800k 5mm LED 95+ CRI

Thank you for looking into this. LAX is definitely a possibility - I’ve had shipments held up there before. It also seems quite possible Thai post is overwhelmed, as well.

Fortunately, I’ve got time to wait and see if my tracking number starts to see movement. I was going to put make small gifts to nephews with some of these, but fortunately, I’ve still got some Yuji’s to spare.

It turns out 3 x alkaline button cells produces a lot more current than lithium coin cells.

I found a cheap 5-pack of “Buck Lights” on Amazon that seemed like a good choice for kids because they are momentary only (can’t be accidentally left on), and the cases screw together, so it should be extremely unlikely they’d be able to open the light and risk swallowing the batteries.

I was surprised how bright they are, so I put a multimeter on them and measured 90mA. This is pretty hard overdriven, but in short bursts, they should not overheat, and the voltage sag dropped that by about 10mA in the first 10 seconds alone, which will likely help prevent harm to the emitter.

A new CR2032 with a Yuji produced only 14 mA (which I find a really good level for finding things in my car).

rngwn’s emitters should be even brighter on alkaline button cells than the Yuji’s, including those Mateminco bullet lights

I think the lights I have use LR41 cells, but I didn’t check the dimensions when I had them open.

Tip:
http://kaidomain.com/S028538-UV1-365nm-1-Mode-Stainless-Steel-UV-Flashlight-1xAAA?page=2

I did not make pictures of the mod but this is a pretty nice host for 5mm leds. A small description: the bezel is press-fit, work it out by prying with a sharp knife between bezel and body. Inside you will find a great little convex-convex lens and under it a plastic holder that retains a small circuit board and a 5mm (UV) led.

Replacing that led with your favourite 5mm led is not just a matter of unsoldering/soldering because the stock UV-led has a very narrow emission angle and probably your replacement led needs to sit closer to the lens to prevent light loss and obtain a good beam. But the plastic holder has a rim on the inside that holds the led at a fixed distance from the lens. So that rim needs to be reamed until your led can be slided through the hole towards the lens. Then, outside the flashlight, light your bare replacement led with a led tester and hold the loose lens in front of it at a distance that gives an optimal nice beam, precisely measure that distance. Then bend and solder the led onto the circuit board sticking out so far out of the board that your measured distance is met upon assembling the lens/plasticholder/circuitboard combination.

Pictures tell a thousand words but unfortunately I don’t have any. But it is easy to see what needs happening when you have the flashlight before you. It is an easy mod.

I used a rngwn 2300K led and chose a beam with the die projected by the lens just out of focus, so it is quite throwy compared to the bare 5mm led. It has a tint shift from 2700K in the center to 2100K near the edge (so getting pretty orange there) but because of the great tint and CRI that actually looks rather attractive. The current from the battery is 122mA (so about 40mA through the led after boosting) and the output is 10.5 lumen, which sounds worse than it is because the light is more concentrated than any bare 5mm led.

My post office has taken my case and should start an investigation on the delayed shipment for iamlucky13 soon.

They might mail you an inquiry card asking if you would get the item by the time the card arrives.

My emitters showed up just just before Christmas!

Something is probably up in USPS LA now. Even my packages that lands on NY doesn’t even want to go to LA right now. :person_facepalming:

Thank you again for following up on this.

I received the inquiry from the USPS and mailed it back this morning to confirm that I have not received the shipment. It seems a bit odd that this would even be needed, since Thai Post’s own tracking information still shows the package as at Suvarnabhumi Mail Centre, so it’s not like they had any reason to think it had been delivered.

Hopefully this results in either Thai Post locating the package or reimbursing you fully. I will check in again in a couple weeks if nothing seems to have happened.

Bureaucracy at its finest. :person_facepalming:

I think THP is trying to ask the receiver first before checking their backlog.

EDIT: In the worst case, I will just need to reship all the packages that was sent on Dec 1, if it keep going onto the mid-January without any progress.

Probably without tracking though, since I will be eating the shipping costs for the reshipping. If that happens and you do receive two shipments, then you can consider reimbursing me later.

Since the mails are sent without insurance (which I have calculated the risk v. indemnity of this before), if the mails are really lost then I’m screwed. I hope they would at least try to find the mails before screwing me over.

(I still haven’t received them yet either… :frowning: )

Bummer…

Contact me if you have to re-ship.
I may want to order some more.

I’m waiting on a bucket-load of packages atm, the ones that have tracking are said to have left China. Maybe postnl has a huge pile somewhere that they stopped working on until after the Christmas peak.

Me too.
It wasn’t too smart to order a bunch of stuff in December…

I will do this in phases. I will first deal with eBay orders (to avoid disputes) and tracked shipments that are seemingly lost after a few weeks from now.

The rest, which are untracked mails will be reshipped at the beginning of next month (if they are not delivered by then).

Of course, the mails in question are the one that was sent on 1 Dec.

I’m slowly running out of colors :smiley:

Just ordered Surefire KL2 head. Uses 5mm LED’s muahahahaha

Rgwn your GB’s made me bought extr stuff

Next host: Sunwayman R01A. Not potted, details in CPF. Ordered a couple of them.

Where did you get it?

Only the gold color is available, as of now.

I did the Sunwayman mod on CPF. Other single AAA lights may be similar internally. I really enjoyed that light, although unfortunately mine died in from a 5’ drop. Hopefully, I was just unlucky, as I think a diode on the driver might not have been well-soldered originally.

The drive current seems to be right around 25mA.

SB Flashlights also has the Klarus Mi02 on closeout right now for cheap. Shipping cost is reasonable, too.

I don’t know for certain, but I don’t think it has a potted driver, so modding it should be similar to the Sunwayman R01a.

Another source would be

https://flashlightshop.de/product_info.php?products_id=8510&osCsid=3471cd3c9e8c337614fb72446463c1ef

More expensive, tan & grey-olive.

amazon also has them

(from NC, USA)

Any sources for the Klarus Mi02 in Europe? SB Flashlights takes $23 s&h :person_facepalming: