It all started on a drawing board or better yet on a monitor
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The plan seemed good but I was worried if I could really cram everything in the Hammond box
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Drivers and spot leds are in place and flood leds wired. Checking flood, checking spot. So far so good.
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Closed with a 6mm Makrolon
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And the solution for batteries
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It is appropriate tat we take a bath before we go out
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So far I like it 
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I haven’t mounted it on a helmet yet, because I’ll make a sort of clip that will allow single hand removal/mounting of the lamp while
retaining tilting. I’ll also add battery meter from hobbyking. The driver for flood is LD29 that is actually current regulated (no PWM, 2,6A max measured with single XML). I used two flood leds for better efficiency and possibility to upgrade with more powerful driver. Spot leds are in series and driven by KD 7135 V2 (2,280A) linear driver. There is a debate whether this should work or not. Spot starts flickering on max if it gets too hot and stops as soon as it cools (under tap water). The canister was the hardest find. I couldn’t find right one until I found out about geo caching and their cache containers. It’s a Mighty Mega and it’s a perfect fit.