KL1-R-SSC P4 with beamshots

Strauss

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Aug 19, 2006
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With so many people on here swaping Seoul's in their KL1's, my friend and fellow forum member Aepoc and I decided to give it a shot last night. My KL1 head had already been modified with an Mcr-20 and UCL lens, so the hard part of cracking open the bezel had already been done.....Aepoc just had to swap the emitter
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We did have to sand the reflector down quite a bit to get the Seoul more focused(increased lux), but I still think I could benefit from an actual Mcr-20S. I think we may have took one too many passes on the sandpaper and ended up hurting the throw a bit
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Also, a thicker o-ring could have helped as the reflector wanted to move around a bit after sanding...but we fixed that. Overall, I am very happy with the results, as they speak for themselves.

I took some readings with my lightmeter before and after the emitter swap, here are the results(head is powered by one 3.7VRCR):

KL1-R: Lux: ~950 Output: ~40 lumens
KL1-R-S: Lux: ~1600 Output: ~90 lumens
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And what would a good mod be without before and after beamshots? Here we go...

PD(UV1J) on left, KL1-R on right:
PDKL1R.jpg


Same as above, except KL1-R-S on left:
PDKL1RS.jpg


A few "working" beamshots....KL1-R:
E2L-R.jpg


McLuxIII-PD T-bin on high:
PD-Tbin.jpg


KL1-R-S:
KL1-RS.jpg


Well, thats it. Just like everyone else has said, this was an excellent and staight forward mod. If I would have had an Mcr-20S it would have been even easier, but we worked with what we had. We were not even planning on doing this, originally we got together to take a bunch of beamshots(which we still did) but ended up with this
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Thanks again for all your help Aepoc, you did an excellent job
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T4R06

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Sep 12, 2006
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Rocky Hill, CT
very nice! last few days KL1 mod is all over. i finally get one yesterday. had to order emitter and MCR20 as well :popcorn:
 

Strauss

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T4R06 said:
very nice! last few days KL1 mod is all over. i finally get one yesterday. had to order emitter and MCR20 as well :popcorn:
Did you oder the McR designed for the Seoul? If not, just sand it down a little at a time until you get a good hot-spot.
 

Aepoc

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Aug 24, 2006
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New York (not the city)
Sanding down the reflector was a pain. It took us about half hour to get it right... even then I think we went too far. Its too bad the shoppe can't keep them in stock.

Its nice to see pics of my first emitter swap on the forums.
Good job with the pics Strauss
 

JanCPF

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Oct 17, 2003
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Denmark
Aepoc,

Nice job. How was the beam before sanding it down? (I like floody beams) Did it have a big ugly dognut hole or something?

Jan
 

ROK

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Dynamic Land
In my experience, McR-20 have more flood beam than McR-20-S and no donut.
JanCPF said:
Nice job. How was the beam before sanding it down? (I like floody beams) Did it have a big ugly dognut hole or something?

Jan
 
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Strauss

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Plattsburgh, NY
Before sanding, the beam was 75% all flood with no donut hole. We sanded the reflector to increase the lux (intensified the hot-spot). If you like floody beams, you still would want to sand the reflector a bit, but you wouldn't have to sand it as much as we did....
 
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