(NAILD) Certified Lighting Specialist (CLS) The CLS exam drills deeply into real-world lighting design and installation—expect scenarios involving color temperature trade-offs, fixture placement in retrofit spaces, and code compliance across residential and commercial environments. You’ll solve actual problems lighting professionals face daily, from calculating lumen requirements for specific tasks to troubleshooting flicker issues in LED conversions.
| Exam Name | (NAILD) Certified Lighting Specialist |
| Exam Code | CLS |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
