You did the decals to warn people you are using Lithium Polymer batteries.
Nice light solution.
Can you see them from 3SM? (Sorry. FAA reg for 30 minutes after sunset so I had to ask. )
I guess you are supposed to call a friend 3 miles away on your cell and ask, "Can you see my lights now?"
The visibility distance can be established by lumen output. It’s extremely difficult to get FAA night waiver approval if the light manufacturer does not provide certified brightness documentation you can submit with a waiver request.
Most multirotor lighting is designed more around close in visibility for the operator.