Tethered drone lighting is the flagship unit in the backpack series, lightweight and portable, ready for immediate deployment, and highly efficient in operation; it supports a continuous flight duration of no less than 24 hours, can carry various mission payloads for video shooting, high-volume announcements, strobe warning, spotlight illumination, and supply drops; it features strong and weak current separation design, comprehensive input and output protection, and self-recovery from faults; it is suitable for emergency lighting applications.