Seems odd but I see no YouTube videos on the subject of adding lights for
FLYING, please feel free to refer me.

My drone (DJI Mini 2) has a "Downward Vision System and Infrared Sensing
System" that keeps the aircraft stable above the ground when not being
user controlled, but it fails at nighttime because it can't see the
ground, so I want to add an LED.

Its sensing system is accurate up to 10 m and operational up to 30 m above
the ground.

Apparently the sensors' side to side vision is 56° with forward to
backward vision at 71°. So I guess the maximum LED angle needed is about
71°.

Any specific LED suggestions? EBay might be better than Amazon for that
particular item.

Without knowing the part numbers and their data, maybe the sensors' Kelvin
is typical sunlight. Its camera allows adjusting the Kelvin sensitivity. I
guess that means the FPV view can be adjusted to match the Kelvin of an
LED headlight added to it (not concerned about that now, but maybe later).

Thanks.