What did you mod today?

That convoy host has unusually large diameter of MCPCB space,23-34mm, washers help to center MCPCB.

Another couple of DQG's today.

DQG Hobi ti Nichia 219C, magnetic forward clicky tail switch. Can work by tail switch or twisty, starts on low or high mode.

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DQG Hobi ti SST-40, QTC/ direct drive. From 0-200lm variable then 1300lm DD.

Immaculate and beautiful work again CRX, not completely sure what happened in every picture but those are some nice flashlights!

My mod today is not that lot of work but it was a special led in a special light.

I had this Olight M10 Maverick (EDC-size with 16340 battery) in my to-mod box for a year now, from a GB clearance sale, and I was looking for a host to check out one of the Nichia E21A 6500K R9080 leds that I bought from Clemence. The about 1A constant that this light is driven at on max, should be great for this led on my non-DTP 119-board. The tricky part was the reflowing, it took a while to get the led centered and there is a bit of flux-residu on the side of the phosfor, but on the bright side the board fitted snugly in the flashlight so that centering did not depend on the center piece. I still used a XP-centerpiece (not doing much centering because the hole is too large), that I sanded really thin, to seat the reflecor at the correct focus and insulate it from the solder pads.
Not perfectly centered.

But the beam looks really good: if you look for it a slight bit of brown in the center of the hotspot, not too much tint shift over the beam and in this host this led is quite throwy even.

The output is pretty good: a steady 265 lumen (the stock XM-L2 gives 350lm according to the manual).
The trees are at 25 meter. Don’t mind the tint in this picture, it is much nicer than it seems here.

So the mod was very succesful, and I hope that the dirty phosfor layer holds up over time.

But what about the goal of this mod, what does 6500K R9080 look like?: in short, amazingly good! On a white wall you see nothing special: a well balanced cold white tint, a well-chosen Cree led could look like that. But once you start illuminating things this is completely different: great colour contrast, red is very red and blue is very blue etc., and everything shows the correct colour including natural stuff like food, wood and skin. I checked with a Convoy S9 with 6500K XM-L2, the E21A sw65 R9080 blows it completely away in light quality. If you like cold white tints (I don’t, really :stuck_out_tongue: ) and care about accurate colours, these leds are little gems!

Nice, so what’s the max these fella’s are happy at?

About 2A is the sweetspot for good output, past 3A the output goes down.

Thanks, might have to try them.

Just like you, this 6500K E21A have made me like CW again. Nice host Jos.
Note: clean your LED in a hot IPA bath and brush it with smooth toothbrush, it will look like new again.

- Clemence

some mention CW give you eye strain when using CW at night, so even if these are HCRI at 9080 could this still be the case, or would it be easier on the eyes with the colour rendition, or something else?.
thanks.

No, no matter how high the CRI, cool white CCT will always strain most normal eyes more than warm white CCT. Many researches proved human eyes are more sensitive to blue and green spectrum. This will make your pupils smaller and less sensitive to the dark surroundings (tunnel effect). Warm lighting with less blue green spectrum perceived as being less intense by the eyes, so the pupils will open wider. This is why candle lit dinner is so romantic. Your partner face will looks more inviting with reddish tone and larger pupils and redder lips. Aroused, human will show slightly swollen red lips. This also why (the origin) women wear lipstick.

Now imagine how a tactical combat flashlight with high CRI and warm white CCT perceived by the enemies. :laughing:

- Clemence

I only have two cool-white high-CRI emitters, and they’re 5700K (a 219B and a 144A). I do notice less eye strain with these than with other cool white emitters, but 5700K is a little less cool than than most, so that might help too.

I wonder how the enemy would perceive this CCT? Think his lips would get redder? I bet his eyes would get Bigger and his back door would slam shut! :wink:

Djozz , it is the first time when I saw a " downgraded " light , made by you !!! From 350 Lm to 265 Lm , almost 30%...There is a new trend I don't know about ?

I was joking , I'm sure that you had your reason , maybe the tint or the CRI..! . On my Maverick M10 , I'd just dedomed the XM-L2 , in order to make it a little more throwy , thinking that the SMO reflector will help , added a bit of quality thermal paste , a small but strong magnet on the clip ( with shrinking tube ) . May I call that an " upgrade" ..? Hardly.., but , except the tint shift ( just a little bit on the yellow side) it seems that worked ! The beam is narrower and more brighter , overall it looks like is better than before ( my wife has an M10 also , and now she is trying to make a trade with mine... ) Should I go for it ?...

It is not the first light that I downgraded in favor of CRI but it always hurts to loose lumens! The throw has increased quite some btw.

I downgraded the M10 a bit further today :innocent: , made it a lot less ‘tactical’ : foybezeledtm the front end and swapped the long forward switch for a small Omten 1288 reverse clicky, and a flatter switch cover.

The blue boot is looking very " manly" ..., may I have one in pink ... (for my wife... )...?

Subtle minor changes , but great effect..! !

Wow, nice Foybezel™ Jos!
I will try to make my first foybezel as soon as the SS C8 bezel arrives

Nothing fancy, but today I completed my first mods.

I put Texas Avenger Bistro OTSM drivers into a Convoy L2 (XM-L2 T6 4C) and a silver Convoy C8 (XP-L HI U6 4B), plus Convoy lighted tail switches with spring bypasses.

I used 18 AWG wire for everything and it was a pain to work with. I’m wondering whether it’s overkill.

It wasn’t all good. I put a BLF X5/X6 driver in my Convoy M2 and I think I fried the emitter, and I overheated the switch in my BLF A6 when I fixed its broken leg so its a bit sensitive.

Replacement parts have been ordered and I’m looking forward to my next mod!

You are well underway modding skinny_tie, leaving a tailing of fried parts :smiley:

Changed batteries in an 9 Year old Batterypack. Its an Ferm Premium Power 18V Batterie with 2P5S 18650.
I used Samsung 30q. It doubled the Capacity. Old Cells had former 1500mAh, I measured around 1000mAh with a High Resistance between 200 and 300 Ohms.

Edit: Thats my Post #500! :partying_face:

Nice work Wieselflink, happen to have any pictures?

Yes!

Old Batteries with 1500mAh each:

New with Samsung 30Q:

Not jet changed, another old battery-back with Sony 18650VT and 1100mAh each:

More Pictures: http://www.taschenlampen-forum.de/media/albums/akkupack-ferm-premium-power-18v-cda1051-fpb-1800l.2157/