Flashcards in Lighting Deck (20)
High output LED
bright, little energy, white light, Dim with low voltage dimmer ex. 4 watts on PDP
Should you dim Flourescents
What kind of light is Xenon and attributes
Incandescent - dimmable, warm, heat
If sconce is placed over furniture does the 4" projection matter?
R - wide (avail in flood and spot)
ER - more efficient throw
PAR - tighter (avail in flood and spot)
MR16 - Narrowest beam spread (very narrow to medium with spread)
Low voltage incandescent is goo for ....
Energy efficient for lighting small or large objects at a distance
Critical zone for direct glare
If reflected glare interferes with the viewing task it is also called
Drama, interest, emphasis - too much is difficult for fine detail
Perception = comfort and pleasant
affect comfort and impression
Fluorescent - high efficiency CFL
higher efficiency and better CRI than some fluorescents
Where would you use Mercury Vapour?
Outdoor/Industrial - Blue/green light with bad CRI
Where would you use Ceramic Metal Halide?
Describe metal halide
Ceramic metal halide - for high ceilings where long life and high efficacy are desirable - retail point source control
Difficult to dim
Time to warm up
Metal Halides - main disadvantage is colour shift over time
Best colour temp for office
Where should you spec auto occupancy lighting controls?
In all spaces not regularly occupied
1. Copy rooms
2. Storage rooms
Daylight responsive controls w/i.....
15' of windows/skylights