If you set up a free account at Lightolier's website you can have access to these courses. Don't know how good they are yet. I doubt it's anything advanced. Lesson 12 is what I think you're looking for.
http://www.lightolier.com/resources/edu_lessons.jsp
Section 1 Lessons in Lighting Fundamentals
Lesson 1 - Light and Vision
Lesson 2 - Light and Color
Lesson 3 - Light Sources
Lesson 4 - Incandescent Lamps
Lesson 5 - Low Voltage Lamps
Lesson 6 - Fluorescent Lamps
Lesson 7 - Ballast Technology
Lesson 8 - Controlling Light
Lesson 9 - Luminaire System Performance
Lesson 10 - High Intensity Discharge Lamps
Lesson 11 - Fluorescent Luminaires and Systems
Lesson 12 - Recessed Downlighting
Lesson 13 - Decorative Lighting
Lesson 14 - Track and Cable Lighting Systems
Lesson 15 - Fiber Optic Illumination Systems
Lesson 16 - Lighting Controls
Lesson 17 - Light and Space
Lesson 18 - Lighting Design
Lesson 19 - The Quantity and Quality of Light
Section 2 Lessons in Lighting Applications
Lesson 20 - Basics of Commercial Office Lighting
Lesson 21 - Retail Lighting
Lesson 22 - Residential Lighting
Lesson 23 - Lighting Education Facilities
Lesson 24 - Emergency Lighting