I’m looking for a 5a driver that works great can be a home built driver or on for KD ect……
I’m using 4x18650
Link to any builds would help if any thanks
I’ve used these in several lights and so far not had a problem. One is currently in a HD2010, JM05 both running 2 x 26650 and the other is in this light running 4 x 26650. This light also has one at the moment running 3 x 26650. Some people do have an issue with the slow mode change though. it takes around half a second to change modes. Good luck on your search and I will be reading this thread with interest.
Thanks for the link I’ll view it more after work 
I might just buy 5diffrent kinds from each place and do some testing on them