Surefire KL4 XP-G

[DaFABRICATA]

I had an extra KL4 sitting around that wasn't getting used, SOOOOO...:devil:

A copper shim was made to fill the cavity from the old LUX V emitter and an XP-G on the 10mm board was installed. It seems to focus perfectly with the stock reflector and the uses the stock driver....for now. I have a few drivers on order and will likely replace the KL4 driver as I'm sure its a bit much for the XP-G.
The backside of the reflector area needs a little triming, but nothing major.

This thing is bright as hell!
Blows the doors off the original..

Not nearly as floody and it throws pretty damn well

Beamshots below show a stock LUX V KL4, P7 KL4, & XP-G KL4...:naughty::twothumbs

Now to order more XP-G's

LUX V---------------------P7------------------------XP-G

LUX V

P7

XP-G

 

[Bullzeyebill]

DaFab, would you check the battery draw at the tailcap? Also, will it run on a 17670? If so current draw from battery?

Bill

 

[DaFABRICATA]

Bill,

Multimeter is out at the moment.
As soon as I get it back I will update

 

[ICUDoc]

Love the beamshot- really does out-do the Lux V. Is the spill much dimmer / smaller or just by comparison to the hotspot?

 

[DaFABRICATA]

Love the beamshot- really does out-do the Lux V. Is the spill much dimmer / smaller or just by comparison to the hotspot?

The spill reaches out the same but is brighter too!

It finally got dark out. I tried it outside and what a difference!
It out-throws the Kl4 with a P7.
I will get some beamshot in the dark when I get a night when it isn't raining. Beamshots in the rain never look as impressive.

 

[DaFABRICATA]

Ok...I gave in and posted beamshots comparing 3 different KL4's..

 

[ROK]

HAHA I already did mine.
I prefer keep original form factor. So I didn't touch the head and filed down a MCPCB.
I'm satisfied with beam quality.
I'll add some glowing epoxy or reflective sheet to cover the urgly face.

 

[DaFABRICATA]

ROK,

NICE JOB!!!...Very clean!
It is a very nice beam and output isn't it?

 

[Bullzeyebill]

ROK, nice shots, and great beam. Do not worry about the "ugly face". Beauty is in the eye of the beholder; it does not bother me.

Bill

 

[smokelaw1]

Nice work! Who wants to do mine?

 

[ROK]

ROK,

NICE JOB!!!...Very clean!
It is a very nice beam and output isn't it?

YEAH! I love the beam quality and output.
In my study, XPG is compatible with Lux & SSC P4 than XR-E.
I think 2mm*20mm MCPCB with diagonal +/- pattern of pcb is the better for KL4 mod.

I have searched buck/boost convert for 1 cell & 2 cell use but no luck.
Anyone knows this kind of converter?

 

[Bullzeyebill]

YEAH! I love the beam quality and output.
In my study, XPG is compatible with Lux & SSC P4 than XR-E.
I think 2mm*20mm MCPCB with diagonal +/- pattern of pcb is the better for KL4 mod.

I have searched buck/boost convert for 1 cell & 2 cell use but no luck.
Anyone knows this kind of converter?

The SF KL1, buck/boost.

Bill

 

[ROK]

The SF KL1, buck/boost.

Bill

I have modded many Surefires.
The parts layout of KL1 circuit is larger than KL4. So it is not fit to KL4 heatsink.

 

[toby_pra]

Very very awesome mod!:thumbsup:

 

[Blindasabat]

I'll let you borrow mine. And while I'm there you can help me solder some LEDs!

Bill,

Multimeter is out at the moment.
As soon as I get it back I will update

 

[DaFABRICATA]

I'll let you borrow mine. And while I'm there you can help me solder some LEDs!

Mark,

Works for me!
Send me a PM if you want to get together to do some modding!:thumbsup:
Soldering with this new Hakko is sooo nice..:naughty:

 

[boznet]

Hello, thanks for the nice mod, i'm a newbie in soldering, which hakko do you use?

 

[ROK]

Hello, thanks for the nice mod, i'm a newbie in soldering, which hakko do you use?

Good soldering iron is helpful but not requisite.
I have used cheap HAKKO 980 with fine tip. Most important factor is experience.

Another mod with XP-G

 

[DaFABRICATA]

Good soldering iron is helpful but not requisite.
I have used cheap HAKKO 980 with fine tip. Most important factor is experience.

Another mod with XP-G

Nice one!!

Ya beat me to it..:laughing:

BEAMSHOT PLEASE!!

How does it do in the KT1/KT2/KT4?



BTW...I use a Hakko 936:twothumbs

 

[Justin Case]

Looks like you filed down a 10mm round. I have some 8mm rounds on order (but not in stock right now) to avoid that hassle. I also have some 10mm rounds on order if I can't wait that long for the 8mm.

What focus height is your tower? Seoul? Lux? What's your driver?

Can you measure the total height of the XP-G package from bottom of the MCPCB to the top of the square ceramic substrate. I would assume that it is close to 2mm + 0.58mm. Does it look like the XP-G die sits at the same level as the top of the ceramic substrate? I'm trying to estimate the XP-G die height to see how close it is to a Seoul focus.

My plan is to mount the XP-G on a Seoul focus tower, driving it with an SOB1185 (that's what I happen to have in my parts drawer, would have preferred an SOB1000). I plan to test the XP-G tower in an SRTH, T-62, KT1/2, and KT4 and compare it to P4 and MC-E towers.