For more information on topics discussed in Lesson 6, see these selected references:
Links
[1] http://www.eere.energy.gov/EE/buildings_lighting.html
[2] http://www.ge.com/en/product/home/lighting.htm
[3] http://members.misty.com/don/light.html
[4] http://hes.lbl.gov/hes/makingithappen/no_regrets/lightingcontrols.html
[5] http://www.eere.energy.gov/buildings/components/lighting/lamps/lowpressure.cfm