Damaged XML2 LED - What happened?

15 posts / 0 new
Last post
MascaratumB
MascaratumB's picture
Offline
Last seen: 41 min 43 sec ago
Joined: 10/29/2016 - 12:12
Posts: 787
Location: Portugal
Damaged XML2 LED - What happened?

Hi BLF!
Last week I noticed that the XML2 T6-4C of my Convoy S2+ was damaged. I noticed that looking at it seemed to have something missing on the “yellow” part.
Also, the beam colour was not homogeneous as it used to be: it now had a “blueish” part on one side.
By the time I was using a pebbled TIR lens, so I changed and put a OP reflector, but the beam still had that different colour.

This light wasn’t changed since I got it from Simon. I only had to add a bit of thermal paste a long time ago and last week I just re-soldered a part in the driver’s retaining ring. No other changes have been made.

Does anyone have a clue why this may have happened?

Here are some photos:

With OP Reflector > With TIR lens (NOTE: the “blueish” part of the beam is on its left side, corresponding to the damaged side)

Thanks in advance for the help Thumbs Up

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

Reviews : Amutorch S3 - XPG3-S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 - XHP70.2 / Nitefox UT20 / Sofirn SF14 & SP10A 

Mods and tricks: 1 / 2 / 3 / 4 / 5                                                                    Convoy S2+ TIR Lenses on: XML2 / XPL-HI

 

Flashy Mike
Flashy Mike's picture
Online
Last seen: 6 min 26 sec ago
Joined: 01/14/2016 - 16:38
Posts: 753
Location: Germany

The TIR lens might have put some force against the dome and lifted it a bit a the damaged side.

wolfdog1226
wolfdog1226's picture
Offline
Last seen: 41 min 27 sec ago
Joined: 10/09/2013 - 20:47
Posts: 1331
Location: Acquasanta,Italia/ Valley Forge, Pa.

I do not know but it looks similar to what happened to my XHP70.2. in my SECOND set of photos.

This first set The bottom 1/3 is not lit up.It was only noticeable when light was on.

The modder[V54] took responsibility and said he probably damaged it during production. I noticed it a week after I got the light.

Here is L6vn.Also XHP70.2.

Damaged after using 20 TOTAL minutes!.This looks to be an electrical issue while the XHP70.2 I posted first was from Physical damage.

If people were more like Dogs the world would be a better place. There would be much less conflict and violence,instead there would be true harmony and grace.

                                                                                                           Wolfdog-5.23.2017

Lexel
Lexel's picture
Online
Last seen: 14 min 31 sec ago
Joined: 11/01/2016 - 08:00
Posts: 2885
Location: Germany

Looks like the dome lifted from the phosphor

LED might be ok after dedome or the phosphor lifted as well

[Reviews] Miboxer C4-12, C2-4k+6k, C2, C4 / Astrolux K1, MF01, S42, K01 / BLF Q8 / Kalrus G35, XT11GT / Nitefox UT20 / Sofirn SF36, SP35 / Imalent DM21TW / Wuben I333 / Ravemen PR1200 / CL06 lantern / Xanes headlamp

[Mods] Skilhunt H03 short / Klarus XT12GTS / colorful anodisation

[Sale] TA drivers Narsil or Bistro, XHP35 E2-3C

MascaratumB
MascaratumB's picture
Offline
Last seen: 41 min 43 sec ago
Joined: 10/29/2016 - 12:12
Posts: 787
Location: Portugal
Flashy Mike wrote:
The TIR lens might have put some force against the dome and lifted it a bit a the damaged side.

Hum, the dome seems to be ok on that side! However, other part (sorry, don’t know the name) seems to have some a crack in the corner? Could have been that?
Maybe the TIR did this, when tightening it… Sad

wolfdog1226 wrote:
I do not know but it looks similar to what happened to my XHP70.2. in my SECOND set of photos.

This first set The bottom 1/3 is not lit up.It was only noticeable when light was on.

The modder[V54] took responsibility and said he probably damaged it during production. I noticed it a week after I got the light.

Here is L6vn.Also XHP70.2.

Damaged after using 20 TOTAL minutes!.This looks to be an electrical issue while the XHP70.2 I posted first was from Physical damage.

Uhh, the second one is really burnt!!! The first one is really damaged as well, the beam gets all weird…

Mine has only that small shift on the colour, nothing like yours Shocked

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

Reviews : Amutorch S3 - XPG3-S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 - XHP70.2 / Nitefox UT20 / Sofirn SF14 & SP10A 

Mods and tricks: 1 / 2 / 3 / 4 / 5                                                                    Convoy S2+ TIR Lenses on: XML2 / XPL-HI

 

MascaratumB
MascaratumB's picture
Offline
Last seen: 41 min 43 sec ago
Joined: 10/29/2016 - 12:12
Posts: 787
Location: Portugal

Lexel wrote:
Looks like the dome lifted from the phosphor

LED might be ok after dedome or the phosphor lifted as well

Sorry, but the phosphor is the yellow part? I don’t know the names of the LED composition Facepalm

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

Reviews : Amutorch S3 - XPG3-S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 - XHP70.2 / Nitefox UT20 / Sofirn SF14 & SP10A 

Mods and tricks: 1 / 2 / 3 / 4 / 5                                                                    Convoy S2+ TIR Lenses on: XML2 / XPL-HI

 

Lexel
Lexel's picture
Online
Last seen: 14 min 31 sec ago
Joined: 11/01/2016 - 08:00
Posts: 2885
Location: Germany

The dome is all over the LED size, not only in the middle, just flat on the corners
If the TIR pushes on the edge it can push the dome inwards separating it from the yellow phosphor

[Reviews] Miboxer C4-12, C2-4k+6k, C2, C4 / Astrolux K1, MF01, S42, K01 / BLF Q8 / Kalrus G35, XT11GT / Nitefox UT20 / Sofirn SF36, SP35 / Imalent DM21TW / Wuben I333 / Ravemen PR1200 / CL06 lantern / Xanes headlamp

[Mods] Skilhunt H03 short / Klarus XT12GTS / colorful anodisation

[Sale] TA drivers Narsil or Bistro, XHP35 E2-3C

MascaratumB
MascaratumB's picture
Offline
Last seen: 41 min 43 sec ago
Joined: 10/29/2016 - 12:12
Posts: 787
Location: Portugal

Thanks for the explanation Lexel! Putting things that way it should have been that little crack in the corner that damaged it!

I’ll replace this LED by a XPL-HI warm white (U6-4C)!

Thanks again Wink

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

Reviews : Amutorch S3 - XPG3-S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 - XHP70.2 / Nitefox UT20 / Sofirn SF14 & SP10A 

Mods and tricks: 1 / 2 / 3 / 4 / 5                                                                    Convoy S2+ TIR Lenses on: XML2 / XPL-HI

 

vwpieces
vwpieces's picture
Offline
Last seen: 25 min 44 sec ago
Joined: 07/17/2016 - 19:49
Posts: 1479
Location: PA, USA

I just worked on my first Olight Smini. Also used the XM-L2 T6 4C swapped in on a 14mm sinkpad. Kinda anticipated, I wanted to avoid what happened to you. I used a 60 degree chamfering tool to open up the optic to get around the emitter and seat to the MCPCB, Well, it worked and allowed the thicker sinkpad to fit into the head with pressed fit bezel. But it changed the optic focus. Grrrr… Now its Square spot.

Ceiling shot about 4 ft. That is turbo, not really as noticeable on lower settings.

MascaratumB
MascaratumB's picture
Offline
Last seen: 41 min 43 sec ago
Joined: 10/29/2016 - 12:12
Posts: 787
Location: Portugal

vwpieces wrote:
I just worked on my first Olight Smini. Also used the XM-L2 T6 4C swapped in on a 14mm sinkpad. Kinda anticipated, I wanted to avoid what happened to you. I used a 60 degree chamfering tool to open up the optic to get around the emitter and seat to the MCPCB, Well, it worked and allowed the thicker sinkpad to fit into the head with pressed fit bezel. But it changed the optic focus. Grrrr… Now its Square spot.

Ceiling shot about 4 ft. That is turbo, not really as noticeable on lower settings.

Seeing your post on the other thread reminded me that I hadn’t answer you on this one! Facepalm

Oh man, that is a real square spot!! Normally I don’t try to open optics os reflectors as it may damaged the beam pattern, and now you confirmed it has.

Did you opened it because of the LED or the sinkpad shape? Won’t an appropriate gasket prevent from that? (on mine, the regular XML2 white gasket didn’t help that much…)

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

Reviews : Amutorch S3 - XPG3-S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 - XHP70.2 / Nitefox UT20 / Sofirn SF14 & SP10A 

Mods and tricks: 1 / 2 / 3 / 4 / 5                                                                    Convoy S2+ TIR Lenses on: XML2 / XPL-HI

 

vwpieces
vwpieces's picture
Offline
Last seen: 25 min 44 sec ago
Joined: 07/17/2016 - 19:49
Posts: 1479
Location: PA, USA

The S mini is a press fit bezel so the spacing has to be right. Original emitter MCPCB is copper but the thinnest I had ever seen. I used a thick sink pad so I opened the optic hole to get a deeper seat to fit everything back in.

Its not the opening of the hole, its the depth into the hole of the optic that changed the focus.
Many have opened optic holes to fit XM into XP optic without issues. For focus you want the optic base as close to the emitter base as possible without touching for best performance. More on it in the S41/S41S threads when we were fixing the Bad Batch. Kinda the voodoo Vin does on his higher output D4’s

Rusty Joe
Rusty Joe's picture
Offline
Last seen: 5 hours 34 min ago
Joined: 07/24/2011 - 00:22
Posts: 2821
Location: Austin, TX

The heat got to it somehow. Maybe electrical resistance that manifested too much heat on one side. My dad’s XRE Q5 started browning from the outward edges. Had to be thrown out.

Eat Once a Day - Lose Weight - Feel Great!

www.omad.info

Lightbringer
Lightbringer's picture
Online
Last seen: 4 min 58 sec ago
Joined: 08/30/2016 - 14:12
Posts: 2785
Location: nyc
Lexel wrote:
If the TIR pushes on the edge it can push the dome inwards separating it from the yellow phosphor

Yep, that’s why even in my S2+es, I make sure the TIR fits nicely onto and over the LED first, before trying to squeeze it down. Then, if at all possible, I’d hold the pill+TIR upright, balanced precariously, then carefully lower the head on top of it, and thread it as much as I can ‘til the TIR is resting against the O-ring. Then the last-last-last step is snugging it up with the ring-pullers.

Some TIRs have a rather very sharp cookie-cutter opening where the LED goes, so you definitely have to be careful.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

Lightbringer
Lightbringer's picture
Online
Last seen: 4 min 58 sec ago
Joined: 08/30/2016 - 14:12
Posts: 2785
Location: nyc
MascaratumB wrote:
I’ll replace this LED by a XPL-HI warm white (U6-4C)!

Great… now not even a dome to “funnel” the TIR’s opening over and onto the LED. Big Smile

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

MascaratumB
MascaratumB's picture
Offline
Last seen: 41 min 43 sec ago
Joined: 10/29/2016 - 12:12
Posts: 787
Location: Portugal
vwpieces wrote:
The S mini is a press fit bezel so the spacing has to be right. Original emitter MCPCB is copper but the thinnest I had ever seen. I used a thick sink pad so I opened the optic hole to get a deeper seat to fit everything back in.

Hum, gotcha! I understand what you say! And if I had intentions to change the emitter on my S1R Baton, I guess with that experience and my “non abilities” to more complicated mods (that could imply damaging wires or whatever, I may have given up and I’ll keep my original one Innocent
I was using a pebbled TIR lens, the hole seemed to fit well, but I didn’t have complete control when screwing in the pill/emitter against the lens…

Rusty Joe wrote:
The heat got to it somehow. Maybe electrical resistance that manifested too much heat on one side. My dad’s XRE Q5 started browning from the outward edges. Had to be thrown out.

Hum, I’m not sure if the heat could have done that, as these are “stock” lights and no mods where done. But, there could always be there an anomally, of course!

Lightbringer wrote:
Yep, that’s why even in my S2+es, I make sure the TIR fits nicely onto and over the LED first, before trying to squeeze it down. Then, if at all possible, I’d hold the pill+TIR upright, balanced precariously, then carefully lower the head on top of it, and thread it as much as I can ‘til the TIR is resting against the O-ring. Then the last-last-last step is snugging it up with the ring-pullers. Some TIRs have a rather very sharp cookie-cutter opening where the LED goes, so you definitely have to be careful.

That’s the process I normally follow, but I am using this TIR without a plastic holder (‘shoe’), so centering is difficult sometimes and the lens may have slipped a bit, forcing the side of the emitter.

Lightbringer wrote:
MascaratumB wrote:
I’ll replace this LED by a XPL-HI warm white (U6-4C)!
Great… now not even a dome to “funnel” the TIR’s opening over and onto the LED. Big Smile

Hehe, I’m going to use the XPL-HI with SMO or OP reflector, no lens Wink I like the output and beam of a XPL-HI LED, so I don’t think I’ll “TIR” it Silly

BUT, there is one thing! I don’t know what happened, but the LED seems to be in good conditions again! Take a look!
I replaced the TIR by the stock OP reflector, and today I saw that the “stain” it had seems to have disappeared! Could it be due to the pressure on the right place that made the dome unite to the phosphor again Question

Anyway, the beam still has a difference in colour, being one part more “blueish” and the other part more “4C” tint! Now I ain’t sure if I’ll replace it for the XPL-HI Big Smile

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

Reviews : Amutorch S3 - XPG3-S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 - XHP70.2 / Nitefox UT20 / Sofirn SF14 & SP10A 

Mods and tricks: 1 / 2 / 3 / 4 / 5                                                                    Convoy S2+ TIR Lenses on: XML2 / XPL-HI