This is a link to a build tyread of a MC-E colour in a sk68 that I did two years ago, the fun is essentially the same as with the XM-L colour (I know because I made a XM-L colour zoomie too, but never posted about it). There's even video in this thread :-) :
Don’t think about it too long. The Chinese New Year is approaching. I would order one but I have to wait until the next credit card cycle before I can buy anything because the Mrs thinks my flashlight addiction was getting out of hand. 
In the mean time, I got several tracking numbers to check every day to keep me occupied. 
@ Alex - a couple of zoomie XML-Color builds
my TF26650 with 30mm lens (just screwing around, not a flashlight I use for anything) LED candle: trustfire 26650 zoomie xml color
Matt’s HD2010 aspheric (using my driver and his awesome machining in a non zooming host- fully focused all the time) Red, Gree, Blue, White hD2010 Woot!
@ everyone else, I have requested review samples of both, I sited my collection of RGBW light’s as why they should let me review them, I believe it’s the largest collection of RGBW light’s anyone has (here and at CPF). I have 14 at last count, about 1/2 and 1/2 stock vs. my own builds.
BTW, tho it wont be tomorrow or even this week (or next) I will be releasing my RGBW_Clicky FW soon (as in by this spring) and the driver has been open source since day one (it will also operate on Mattaus’s 7135 based 17mm board as is), I’ve made some changed to still retain a proprietary aspect for my own builds but the version I plan to release has the main white modes (with red moon mode) as well as the 3 individual color ramps! The source code will be released so anyone (who get’s setup with a $20 PICkit3 and some blank 12F617’s) can mod it to their need’s. with the final color spectrum fade and stunner strobe modes removed there is less that 70% of the memory used so plenty of room for customization.
I just received a XP-E 20mm alu version of this zoomie. Shelf is semi-hollow, with ~7mm dia opening right in the center. Strangely, I almost kill my emitter even at 1.9~2A.
Finishing is average like Ultrafire F13. Light is not really usable in stock form imo.
Skilhunt has an XML color headlamp, that is out now.
http://www.gearbest.com/led-flashlights/pp_131035.html
They contacted me to review it, and I’m finishing it up. Should have the video review up in about two days.
RGBW lamps are hot at the moment, not sure why but they are a lot of fun :-)
… looking forward to this colorful review!
Does it have a solid pill of hollow pill?
The regular reflector has a solid pill. The zoomie appears to have a hole below the led star.
This is what I got. Not sure it is the same for all 601Z.
I would say that the crappy design is limited to the zoom version. The 601 and 602 regular reflector do not have that hole.
It looks like Klarus has updated their RS20 so that the side now uses XM-L color led. (But most vendor sites that that I looked at just now still list the previous RS20 with the ‘switchable’ led).
http://www.klaruslight.com/plist_show.php?id=142&lge=en
Which one can be driven harder, MCE or XML color?
mce is rated for 700mA, xml for 1A. the die projection in zoomies is better with the mce though.
Thanks, I also saw a post in another thread where the XML was cranked up past 2 amps. 2 amps looks like the point before diminishing returns assuming good heat sinking. Maybe…
Anywhere I can get this in the U.S.?
EagleTac D25LC2
Several stores have it if you check on Google.
I am looking for the RA-601ZOOM 5 mode CREE XM-L RGBW 4 color in 1 LED( red blue green white ) Police torch Tactical Flashlight in the U.S… Not the EagleTac D25LC2.
I could sell you my slightly used one for $40 shipped, I’d just order a new one from AliExpress for $26 to replace it though.
in 2019 are there any torches/flashlights with really bright rgb(w) leds like cree xm-l? i am struggling to find any. really i want a mini party light. thinking of making my own and having it usb powered 