ALA Lighting Specialist Practice Exam 2025 – The Comprehensive All-in-One Guide to Exam Success!

The statement indicating that a downlight must be 3" away from combustible material is incorrect. The National Electrical Code (NEC) specifies that fixtures must maintain a distance of at least 3 inches from combustible materials to ensure safety and minimize fire hazards. However, this distance can vary based on the type of housing and whether it is rated for contact with insulation. Specifically, fixtures designed for insulation contact (IC-rated) can be placed directly in contact with insulation without the 3" clearance. The emphasis on specific distances in relation to combustible materials becomes context-dependent, particularly when accounting for different fixture ratings and installation environments.

In contrast, the other statements are grounded in safety and regulatory requirements. IC housings being buried in thermal insulation is allowed to provide energy efficiency and better thermal management. The need for all downlights to be thermally protected is reinforced by safety guidelines that prevent overheating. Additionally, the requirement for splices to be accessible is essential for maintenance and safety, ensuring that wiring connections can be inspected and serviced without needing to demolish structural elements. These are crucial considerations in the design and installation of downlights.