Luminaire InformationThe linear fluorescent luminaire that was used for this calculation is Focus 4 which is a linear, wall-slot, wall grazerer. The overall dimensions of the Focus 4 are 10" (wide) x 4' (long) x 7.75" (tall). The luminaire is by Focal Point and the catalog number is FW4-NS-2T8-1C-120-E-RC-HW-4' .
Lamp InformationThe IES file for this luminaire uses two 32 Watt T8 lamps with a G13 base and each lamp has 2850 lumens. The lamp catalog number is F32T8/TL830/XLL/ALTO-PHILIPS.
Ballast InformationTo determine the ballast factor I used a EcoSystem H-series ballast by Lutron.
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Zone DataFrom the table on the left we can see that most zones have a 20% or less difference from every point to the average of that zone. This tells us that we have a fairly evenly illuminated wall in each of the 6 zones. Zones 3-6 are fairy consistent in illuminance values where average illuminance values are approximately 2 fc in each zone. Since zone one is the closest to the wall grazer it is receiving a higher illuminance value than the other zones. This creates a hot spot on the wall close to the ceiling, but an even illuminance close to the floor.
Total Watts Consumed1,152 Watts
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