Lighting calculations features :-
CIBSE LUX Level Recomendations
Sports lighting level
Emergency Lighting
Room Index (K) Calculator
Utilization factor calculator
Lux-Lumen Conversions
Watts-Lumen Conversions
Watts-Lux Conversions
Candela-Lux Conversions
Candela-lumen Conversions
Lux to Foot-Candela
Color temperature
Types of lamps
Lamps properties
What is in a Ballast ?
Magnetic vs electronic Ballast
Ballast connections
Types of ceiling
Reflectance factors chart
Utilization factor table
Efficacy of fluorescent lamp sys
One gang / one way Switch
Two gang / one way Switch
Three gang / one way Switch
Simple autocad design
Enclosure(protection)