outstanding video, thanks, for others interested, it is in post #88
I think you made a great harness, and chose some really cute little lights. I wish you success with your project.
I would say the video shows a ridiculously high amount of light, and a very large target of illumination. If you can make it work… Im happy for you. If you hit a bottleneck at runtime, consider lights with lower, but more stable runtime graphs, and tight hotspot beams with minimal spill.
here is a thread about ultra throwers
… not sure if there is anything there that is small enough for your application… but maybe it will trigger some options for you
fwiw, 900 lumens is not for long
here is a runtime graph for the EC11
note the timescale is in single digit minutes… I dont know how much flight illumination time you need.