LED COLOR & FIXTURE SPACING
We recommend neutral lamp color (3500K to 4000K) unless specified otherwise.
Where available, we manufacture our fixtures with color adjustable LED drivers.
Where available, we manufacture our fixtures with color adjustable LED drivers.
INSIDE APARTMENT UNITS:
1 Fixture per Apt Foyer or Hall
1 Fixture per Kitchen (2 to 4 if recessed downlights)
1 Fixture per Living Room or Dining Room
1 Fixture per Bedroom
1 Fixture per Bathroom (Vanity, Ceiling, or both)
1 Fixture per Apt Foyer or Hall
1 Fixture per Kitchen (2 to 4 if recessed downlights)
1 Fixture per Living Room or Dining Room
1 Fixture per Bedroom
1 Fixture per Bathroom (Vanity, Ceiling, or both)
PUBLIC CORRIDORS:
Ceiling or Wall Fixtures Approx. 15’-18’ OC in Corridors
1 Fixture per Janitor Closet
1 Fixture per Electrical Closet
1 Exit Sign Outside each Stairwell
(add signs if egress stairwell is not in view)
COMMON AREAS:
Calculate Total Area of Room
Multiply Area x 30 (Average 30 Foot-candles)
(Area x 30) ÷ (Fixture Lumens x .72) = Qty of Fixtures Required
CLASSROOMS, CONFERENCE ROOMS, OFFICES:
Calculate Total Area of Room
Multiply Area x 50 (Average 50 Foot-candles)
(Area x 50) ÷ (Fixture Lumens x .72) = Qty of Fixtures Required
OTHER LOCATIONS:
Calculate Total Area of Room
Multiply Area x Recommended Foot-candles (FC) from FC Chart Below
(Area x Foot-Candles) ÷ (Fixture Lumens x .72) = Qty of Fixtures Required
For other tasks, use internet search words: IES foot-candle recommendations (+ task)
Light intensity is measured in foot-candles (FC), which technically is one lumen of light per square foot. Fixture specs should indicate its lumens (units of visible light). Generally, the higher the fixture's lumens, the higher the foot-candle level, or the more the light emitted.
Add suffix -EM (emergency battery) every 4th fixture (min) in public spaces
Add suffix -BL (bi-level occupancy sensor) as required by energy codes
Consult with architect, energy consultant, engineer, or lighting designer
Add suffix -BL (bi-level occupancy sensor) as required by energy codes
Consult with architect, energy consultant, engineer, or lighting designer
Spacing Formulas © 2021 ULgroupUSA.com (courtesy of the late Robert Maute)