Focusing on AI intelligent vehicle warning long-row lights, this paper analyzes the design trade-offs of this integrated police sound and light equipment in wind resistance modeling, optical module and heat dissipation structure. Combined with the on-board high-speed vibration and all-weather outdoor service conditions, the design red lines such as optical clearance, shell sealing and thermal management of the whole machine are sorted out to provide practical reference ideas for the industrial design of on-board warning equipment for police vehicles and special inspection vehicles.