Client: Residential Complex (Chengdu, Sichuan)
Challenge:
- Obsolete lighting forced players to stop games at 8 PM
- ¥15,000/year electricity costs for failing halogen lights
- Frequent bulb replacements (3-4 times monthly)
- Safety concerns in rainy seasons
Solution: Solar LED Stadium Light Deployment
Project Scope:
- ⚡ 6 units of 50W Solar LED Lights (60,000 total lumens)
- 🏀 Full coverage of 26×14m community court
- 📅 Installed March 2024 - survived record monsoon season
Documented Results (Verified with Timestamped Photos):
-
ADC12 Aluminum Advantage
▶️ 41°C surface temp during 36°C "sauna days" (thermal images vs. rusted old fixtures)
▶️ Zero maintenance in 10 months (vs. weekly repairs previously) -
High-Lumen 3030 LEDs
▶️ 210 lux uniformity (surpassing CJJ 45-2015 community standards)
▶️ 83% energy cost reduction - from ¥1,250 to ¥0/month -
25AH LiFePO4 Battery Performance
▶️ 7-day non-stop lighting during July 2024 floods (228mm rainfall)
▶️ Midnight safety: 100% brightness until 6 AM -
120W Solar Panel Efficiency
▶️ Full recharge in 2.8 hours despite Chengdu’s fog
▶️ Bird-proof design (nesting eliminated vs. old panels)
Before/After Impact
| Metric | Old System | Solar Solution |
|---|---|---|
| Operating Cost | ¥1,250/month | ¥0 |
| Daily Use Hours | 3 hours (6-9PM) | 8 hours (4PM-midnight) |
| Monthly Maintenance | 4 visits | Zero (10 months) |
| Community Complaints | 18/month | 0 |
Resident Testimonial:
"These lights gave our neighborhood new life! Kids now study under the lights after dinner, seniors do tai chi at dawn, and our midnight basketball league runs rain or shine. During the July floods when streets went dark, this court became our community lighthouse."
— Ms. Li Hua, Homeowners Committee Director
Community Impact:
- 89% resident satisfaction (2024 year-end survey)
- Property values increased 5% near court
- 24/7 security: Lights deter trespassers
