Artificial Lighting (Leaving Cert Construction Studies): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Incandescence
Incandescence
Light produced when object becomes so hot it glows
Luminescence
Luminescence
Light from chemical/electrical reactions, not heat
GLS lamp filament material
GLS lamp filament material
Tungsten metal
% of GLS energy that becomes heat
% of GLS energy that becomes heat
90%
Gases in halogen lamps
Gases in halogen lamps
Iodine or bromine
LED lifespan (hours)
LED lifespan (hours)
Up to 100,000 hours
Fluorescent efficiency vs tungsten (times more)
Fluorescent efficiency vs tungsten (times more)
rac{100}{25} = 4 times more efficient
Luminaire
Luminaire
Complete lighting unit: lamp, socket, wiring, reflector
Energy efficiency measurement for lamps
Energy efficiency measurement for lamps
Lumens per watt
Halogen lamp hazard
Halogen lamp hazard
Extremely hot, fire and burn risk
