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I ordered one of those drivers too. I was going to put it in my Ultrafire WF-504B R2, but after seeing some results at CPF it doesn't seem like it will provide any better regulation than the 504B has already. Is it the one with the stars on the back? I'd like to see one that is done and whether it just needs a blob of solder or a wire. If nothing else, it would be nice to have memory and only 3 modes (maybe even 2).

I don't even have my Akoray K-106 and now someone has put a bug in my ear about putting a R5 emitter on it. Thank goodness Chinese New Year is keeping me in check for now.

Yeah , I only like the Buck Boost drivers as they allow for 1xAA and 2xAA use , as I like to LEGO my Solarforce L2's .. I got a nice smooth and shiny P60 pill so will see how that goes with a XP-G R5 .. I would love to see 1.4A Buck Boost drivers ..

The other buck boost driver will go into my spear clone , I would love to see the emitter getting another 200-300mA .

It looks like you ordered different P60 empty pills. Is there a special reason, or do you simply want to try them out? (like other measurement or more space)

I'm very interested to know how they turn out when it's all combined together. Hopefully it's as good as it sounds. =)

I ordered a Smooth and OP XR-E pills , as well as 3 XP-E pills [ OP ] ..

I just completed the pill [ XP-G R5 ] and I built it on the smooth reflector [ very ringy ] , I had a SSC P4 pill , so I pulled the OP reflector of it and did a swap ...

Much nicer with the OP reflector , the SSC P4 works well with the smooth reflector , so thats good as well . 

Using the KD Buck Boost driver = ???? 

Its a funny little driver .. Pulls at least 1.6A measured at the tail , and the pill does 350ish on a fresh cell , and 300+ on a one thats been used for a while [ 4volts ] 

I tried 2xAA and this driver hates this combination , all it does is blink at me [ low voltage warning ? ] 

SO it does not look like this will make a good LEGO driver , I also havent tried soldering the stars yet , as it came its 5 mode ... Hi - Med - Lo - Strobe - SOS 

Im not so sure I want to use the 2nd one on my spear clone , as I though , stock , it was single mode ... And I thought it was a 1A , but appears to deliver more than that by quite a margin .  I will build another XP-G R5 pill with the KD BB driver and see how it behaves ..

Anyhow , I was impressed enough with the pill to put it in my L2p ..  When I build the next one , I will check to see how much amps is being delivered to the emitter [ Efficiency ] , and try connecting the stars to see what happens ...  Was just about to post a DIY P60 build guide ... 

That DIY guide would be much appreciated, while I know how to solder, I have never soldered a driver in a P60 pill before. I'm especially interested in the connection of driver PCB and the brass pill. Do you have a video cam and a Youtube account? ;-)

Video ?   I have a you tube member acc , and have posted some small vidz ... Taken with the Kodac    http://www.youtube.com/watch?v=yyWbtu70TO4 L2micro Video 

I find it easier to do a stills tutorial ..

OK, the problem with stills is that they mostly show the endresults of a process, but I can understand that you don't want to film your "live" soldering, would have been interesting though.

My only problem with it is that it would be a chore !  

http://www.youtube.com/results?search_query=soldering+tutorial&search_type=&aq=0&oq=Soldering

And there is already plenty out there , guides that is . 

Ok, totally understandable, you would have to have a tripod or cameraman and so on. I was not interested in general soldering, but in P60 pill case - driver related soldering. But like you said, it's a lot of work.

I built a second pill : Same thing , about 1.6A measured at the tail .. I will measure forward current as time permits .. 

I did the star thing , to change modes ...  Looking at the driver , with the stars at the bottom and facing you , you start from the right ... And move left to connect the stars and change the modes ...

 You connect the stars to the Negative ...   I dont know if I like this driver :  I will do a runtime test to see how well regulated it is ... So far , ??? It really is nothing better than the SSC P7 driver I have been using from KD for all my XR-E to SSC P7 builds [ Direct drive on high ]