I have one of these lights on the way. Hoping the atmospherics I already have will work on the stock head. They’re glass, 97% (maybe 99) transmittance, 59mm outside diameter, 5-90% beam.
Thank you Pulsar, but probably I am not able to do even this simple mod 
You know if exists a module with a led+driver already combined to replace en bloc?
Would be fine even if it includes all the pill! ….maybe I’m asking too much :bigsmile:
ok so i put an xre ez100 in this, as its all i have right now to play with. and i dont know if i did something wrong last time i measured the lux…
this time measured at 3 meters i got 161,100 lux at 1 meter. measuring at 2 meters i got 149,200 lux at 1 meter
i will take readings again tonight when there isnt as much light pollution (thats what i call the sun 
)
averaged the readings to about 155k lux @ 1 meter
edit: thats almost 2700 lux per dollar into this light. $25 for the zy-t13 from ebay (tmart), $30 for the collimator head from md-lightsource.com, $2.32 for the xre on 16mm star from fasttech.com
edit again: almost think if i measure further away the lux may go up. tonight i will measure lux from one meter up to 10 meters see if theres a patern
No there is not a module with led and driver for this model.
What would be great is if someone would machine a light engine without side switch. 17mm driver and 20mm star. And also head threads machined to have the crelant head in perfect focus
But that would be kind of a pricey
just got 158,882 lux at 1m, measured at 4m. thats with the stock 2 cell tube
with the crelant 7g2cs tube and one cell… 155,380 lux at 1m, also measured at 4m.
is loosing 3500 lux at one meter worth being a shorty? i think yes
just want to note: at this point it is an xre r2 ez1000 (thats if fasttech correctly listed the bin). also, it is not dedomed and the driver is stock.
edit: also, the ez900 i had in it before was from a cheap ebay romisen rc-c6 aa clone, that was run on li-ion, and basically had no heat sink. so it may have been on its last leg to begin with. that might explain the low lux readings
ah what voltage works the stock driver of T13 with 2 cells?
It’is possible to put an XP-G2 and maintain the stock driver? it would work?
I would like to use it only with the collimator head to have a long laser 8)
Voltage is not your problem, it would work, on the other hand Amperage might fry your LED,
most likely it will not if you heat sink it well but if it does it’s not my fault 
Totally agree. That’s one bad shorty!
Those figs are with the collimator head?
thank you Sirius! I would maintain the driver because i’m not able to change it….so i could change only the LED to improve the throw 
…and than i could maintain the side switch that i like to change modes!
yeah thats with the collimator.
still thinking about trying it with a de domed new gen emitter. got some 20mm noctigons on the way
when i checked amps at the emitter, i got 1.99a with two cells.
you should try 2x 18350 IMR in shorty config
i would if i had some. only thing i have is lifepo4 rcr123a
im constantly on the lookout for a new host for this head. id like one with no side switch and uses a standard size driver. would be great if i could find a host with a 17mm driver, 20mm star, and single 26650 that i could fit this head on… but doubt i will find something
id like to do the resister mod on the stock driver at some point, but the lowest ohm pot i have is 1k. so ill need to order some different ones, but im a slacker
Fair enough. Some effest ones on ebay if youre feelin froggy. 
that 26650 idea sounds good, but yeah, probly not very likely unfortunately.
so i was just checking the lux with the stock head, and found the spare dx aspheric for the crelant head. its a little bit smaller than stock, so it wants to go off center. even with it centered, i lost about 10k lux with the dx lens, even though it looks better made
im sure if i bought a few more, each one would give different results and find one that fits and focuses perfect… but for now im going back to the crappy looking, pitted up stock aspheric that came with it
thank you Pulsar….i’ll have to look for an XP-G2 that supports this amperage!!..…but i still buy the small sun :~ …who sells the best?
looks like the xpg2 maxes out at about 2.6a, and not a huge boost in lumens from 2a, so i would say that using it with a stock driver in the zy-t13 would be fine. though i dont feel the zy-t13 has the best heat sinking, so try it at your own risk. worst that could happen i guess is loose a few dollars on an emitter.
i got mine from ebay for $25, just because i had a gift card for ebay. you can find them all sorts of places. i know wallbuys has frequent sales, and a lot of times they include this small sun. do some searching first. dont just buy from wallbuys because i say they have it, its your choice. they have kind of shady practices, though seem to ship fast and reliably….
ok… i could not leave well enough alone…
so i decided to dedome the xre, again J)
at 4 meters, im getting over 200,000 lux at 1m with this emitter. 200,752 lux at 1m to be exact.
just got 17,241 lux at 1m measuring from 4m with my ea4w for comparison, using 4 energizer ultimate lithiums
nice ugly rings on the wall, but im sure they wont be noticeable outside
edit: up to about 3,502 lux per dollar
that sick man.
now you need to do an xpg2 version
yeah, ive got some new boards on the way from intl-outdoor. two xp and two xm noctigons. but i didnt have the money to order any emitters, so i got to order some xpg2s and a few more xml2s sometime to play with.