CALT Domain 1: Introduction to Lighting - Complete Study Guide 2026
Domain 1: Introduction to Lighting is the foundation section of the Certified Apprentice Lighting Technician (CALT) exam administered by NALMCO, the...
CALT Domain Deep Dives
Domain Deep Dives for the Certified Apprentice Lighting Technician (CALT) exam - 4 in-depth guides to help you prepare with confidence. Browse all study resources or jump straight into a guide below.
CALT Domain 2: Incandescent Lighting - Complete Study Guide 2026
The Certified Apprentice Lighting Technician credential is issued by NALMCO, the interNational Association of Lighting Management Companies, and it is...
CALT Domain 3: Fluorescent Lighting - Complete Study Guide 2026
Fluorescent lighting has been retrofitted and replaced by LED technology in a large share of commercial buildings, but it is far from gone.
CALT Domain 4: High Intensity Discharge (HID) Lighting - Complete Study Guide 2026
NALMCO built the Certified Apprentice Lighting Technician exam around eight distinct content areas, and High Intensity Discharge lighting earns a full...
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