BTU Shocker Mod - XM-L2 U2's/SinkPAD's

Tom E has pretty much done everything I have done, except I went a little further and smoked the driver :wink:
I have much lower measurements, but the modded BTU is easily the brightest light I have, both in throw and lumen output.
I’ve heard people say it is too heavy or too awkward, but I’ve put it through the paces and it works well. The weight is no problem, side clicky would be nice.

Before:

After:

All polished up:

Clear view of the rings:

I smoothed the pill area as well. Once you get to 2000 grit paper, things take on a mirror-like finish. Very nice.

There are so many lights that I would have bought if they werent glued… including the TK70.

Just say no to glued flashlights! |(

That looks great Tom E. Did you buy those thin insulation disks or make them? Got a link or can you tell us what material you used? It sure looks a lot better than kapton tape.

I'm like 98% sure it's these in a translucent style: http://intl-outdoor.com/cree-xml-insulation-gaskets-10-pcs-p-463.html. They got the 3M trademark on the back. I cut out the center square hole to make it bigger, using a small cutting pliers. They came out in the pic looking like they were made to fit, but if you look closely, the cut out is more octagonal shape from a series of straight cuts from the cutters. I've used these before, come in real handy because of the 19mm diameter. Think I'll be ordering more along with some of those noctigon copper MCPCB's reviewed by PPtk.

Update: ordered more, ordered some of the noctigons at each size/type. Their springs look excellent quality - got a bunch of sizes, ordered more...

Anyone else do a tailcap reading across the switch?

I'm curious what others are seeing measuring amps this way, if you get in the neighborhood of 3.85A or not. I think one of the reviewers noted 3.6A on turbo.

I’m not sure if these springs would fit or not but I have used the ’’A” ones and they are very stiff. On a 5 amp driver it makes no difference to the current if the battery is resting on it or being pushed hard with the spring on the driver and tailcap measurements being taken.

Yes - I used these on one Shocker - makes a very tight fit for KP 3400's. 5 amp driver? Stock Shocker driver is supposedly 3.8A and the DRY driver is direct drive, so it's higher based on lumens/throw I got but didn't do a tailcap reading...

Ok guys you made me confused, so please help with few questions!

1. Doesent all BT shocker already come with U2 lens as stated on CNQG site?

2. Doesent all BTU Shocker already come with better lens as of lately then the old revisions? what lens are you guys using to mod?

3. What driver should i pick during my order, DRY vs BTU what are the pros and cons, does it really worth it to go for DRY?

4. I got some high end thermal paste, Artic Cooling MX-4, it beats Artic Silver for whole 2c, should i use this, instead of the stock - to mod the cooling, is it easy to replace the paste?

Thanks guys!

1 - XML U2, not XM-L2 U2 -- new generation of CREE emitter

2 - they always said AR lens but it wasn't an AR -- now it actually is what they say it is

3 - DRY has poor/low PWM's and cuts out of turbo after 2 mins, while the BTU driver has no PWM's (I think?), 3 mins cutoff from turbo. I believe the BTU will keep output more consistently as the battery drains as well

4 - Well, depends on your definition of easy, and if that's the only mod you do, probably not worth it -- much better to get those LED's on copper stars, SinkPAD or Noctigon

Thanks dude, can you provide me links where can i get the Leds (reliable site/seller i guess) as well as those Sinkpads? sorry i’m not moder my friend is, so this is all totally new to me, keep that in mind :slight_smile:

So what i need is,

Leds, and sinkpads only to make this light noticeably better, also replace the wires in the flashlight with ticker ones? thanks!

best source for LED's for this mod: https://illuminationsupply.com/cree-leds-c-52_36/cree-xml2-bare-u2-1c-tint-6500k-p-279.html

Cheapest copper boards and best price: http://intl-outdoor.com/noctigon-xm20-copper-mcpcb-2pcs-p-713.html, or get 20mm SinkPAD's from VestureofBlood (BLF'er).

I use 20 gauge silicone, gotten off of eBay, but it's pricey - can't find a better/cheaper source though. You get like 30" of red, 30" of black for like $10 with shipping - way too much...

Thanks alot, are the LEDS cw? sorry im new to this stuff as i said, thanks one more time :slight_smile:

Tom do you offer your modding services on the BTU?

Well, I have done a few for fellow BLF'ers, but really need a break - been buried in mod'ing every evening and all weekend, still need to work, and got other things going on, so afraid I need to turn new mod'ing work down for now. There's always the risk luming over my head and I've had some close calls recently, and diffculty keeping track of all on-going communication -- just a lot of time & effort, and it's been getting crazier and crazier...

hey completely understandable - just figured i’d ask

good luck with everything!

thats what happens when you do good work lol

Thanks!! I got a pile of my own stuff-to-be-mod'ed as well, need to catch up, a little anyway...

Is it advisable to dedome the emitters of the BTU Shocker? Has anyone tried it already?