my test report
8K 2fps 25min (25°C) / no battery in ThetaX / Power use Ulanzi BG-4
keep REC no stop to no space
25:01 X 8 (5.67G)
14:39 X 1 (3.32G)
Ulanzi BG-3 dump energy > 60%
if light single can show recording state ,I think it would be better.