Suitable driver for a 3*XM-L2 bike light setup

Hi!

I’m currently having a project in school were I’m supposed to design and make bike light. So, now I’m on the hunt for a suitable driver for my this build. The light will come from 3 XM-L2 U3 emitters on 20 mm MCPCB’s. My plan was to use the b3flex driver provided by Taskled, but as it seems now, it won’t be in stock until early march and that doesn’t include the shipping from the US to Sweden… I can’t just wait that long for it to arrive.

I’ve also seen that Cutter AU stocks it, but the shipping cost is horrible, and after reading some reviews it seems like you really shouldn’t be in a hurry when ordering from them… So thats not an option for me.

I will make the housing myself and can therefore adjust the size to suit the driver, but I’ll try to make it as small as possible. The battery will be chosen to suit the driver, so both buck- and boost drivers could be of interest.

Do you guys have any suggestions for a driver that suits my needs? I’ll be more than happy for any kind ideas that could get this project moving.

Provided your housing can handle the heat and plan on driving each emitter equally, you could use a simple direct drive driver from mtnelectronics.com. All emitters would be driven in parallel using your desired number of cells wired in parallel as well.
There are a number of different firmware/user interface to choose from.