This advanced lighting project was implemented for an indoor sports complex in Jilin Province, an area notorious for its extreme winter temperatures (regularly dropping below -20°C). The facility houses professional-grade tennis, badminton, and table tennis courts, requiring a lighting solution that ensures consistent performance, athlete safety, and visual comfort despite the demanding climate.
Climate-Driven Design Challenges
Sub-zero temperatures impacting electronics and materials
High humidity fluctuations between indoor play areas and frigid outdoor air
Demands for rapid warm-up and stable performance in cold starts

1. Tennis Courts & Table Tennis Court
Illuminance: 300-500 lux (training) with uniformity ratio < 1.5
Glare Control: Asymmetric optics with UGR < 19
Ball Tracking: High CRI (>85) LEDs for clear visibility of fast-moving yellow/green balls
2. Badminton Courts
Vertical Illumination: 200+ lux on walls for shuttlecock tracking
Ceiling Shadows: Eliminated via optimized fixture placement
Flicker-Free: >4,000Hz frequency to prevent strobe effects during rapid head movements