xhp70 6V driver

Im am planing to build a light with a xhp70 on 6V

I have two batterypacks I would like to use, one 3S at 40Ah and one 4S at 10Ah.

Im looking for a driver that can handle 3s and 4s
The LED needs to run on 6V @ min 5Ah

Is there any driver that can do this?

I have a size limit of 28-35mm diameter round.
As small as possible.

No one?

These aren't cheap but looks like what you are after. They are easy to program after you get your head around on what to do.

http://www.taskled.com/h6flex.shtml

I have seen that one, but it is to big.

Another good driver but not cheap either:

25mm
https://pcb-components.de/led-abwaertswandler-buck-step-down/ampere-5000ma-oder-9000ma-7v-25v-detail.html

can be run from 4-11A
https://pcb-components.de/anleitungen/Ampere.pdf
https://pcb-components.de/downloads/tools/Calculator_17.zip

Great thank you!