I only fitted this yesterday and was setting up the DVR/camera via the app and noticed this pulsing of the brightness. Firmware is the latest is there a reason why I get these brightness fluctuation? Engine was not running, no EMI from anywhere? https://www.youtube.com/watch?v=E9HV06t0WyI&feature=youtu.be upload video link won't work sorry but the link above should.... I hope.