Factory lighting requirements vary by manufacturing precision. Coarse assembly: 300 lux, CRI≥70. Medium assembly: 500 lux, CRI≥80. Fine assembly/inspection: 750–1,000 lux, CRI≥90. Key fixture types: LED linear high bays for assembly lines (uniform light distribution), UFO high bays for open floor areas, and task lighting for inspection stations. IP65+ required for dusty/wet environments. Emergency lighting (1 lux minimum) must be maintained per OSHA/EN 1838. Smart controls (DALI) enable zone-based dimming and occupancy sensing, reducing energy consumption by an additional 30–50% beyond LED efficiency gains.