Mateminco kindly sent the MT-911 for review.
It fell short of the lumen and beam distance claims.
The host and emitter are nice. I feel as though it is let down by the driver. Swap a K1 driver in? 
Here is my review:
2 Thanks
I agree. A great host definitely let down by the driver. I added 20 awg led wires (stock were too small for 20 A) swapped an Astrolux EA01 driver in mine to get the configurable thermal limit (and because i wanted to keep the usb usb charging).
2 Thanks