Good afternoon DIY'ers 

I've got multiple 18V B&D battery packs, and this LED MCPCB which I think was originally from a streetlamp assembly.

My intentions are to 3D print a body for LED panel, battery packs and a carrying mechanism perhaps with a tripod mount.

There's no practical purpose other than vanquishing the dark momentarily and I mean momentarily - This thing gets ~HOT~.



My question is do I need to worry about circuits for varying the voltage or will a basic mechanical pot be adequate?

Would love to hear from anyone who's utilised power tool battery packs for DIY projects for any gotchas I need to be aware of. 

Thanks for looking!