... high luminous efficiency (>110lm/W); lamp output ratio >90%.7. Color index exceed 80% that make objects be easily discerned meanwhile reducing ... ,000KPure White: 5,000-6,000KCool White: 6,000-7,000K14. Color Index (CRI)Pure White: Ra >= 75Warm White: Ra >= 8015. Effective ... ,4. Stadium,5. Engineering construction,6. Metallurgy and other factory,7. Station,8. Canopy,9. Hall. Lighting projects of our led ...