Lightolier C4AW specifications Lighting Data, Candlepower Curve

	Calculite® Evolution Incandescent Open Wall Washer C4AW
Page 2 of 2	4 1/2” Aperture A19/MB19/BT15 Reflector Trim

Lighting Data

3’

3’

2’

3’

20 f.c.

18 f.c.

Lighting Data

Example: With clear Alzak® and 100W A-19 units, located 2’ from wall and 3’ on center, (matching downlights 3’ on center), the illumination on the wall 3’ down from the ceiling is 20 f.c. beneath and 18 f.c. between fixtures.

Footcandles on Wall From Multiple Units - Clear Alzak® with 100W A19

			2’					3’			UNITS 2 FEET FROM WALL
Ft.												4’
	1	24	22	24	20		12		20		19	6	19
Ceiling,
	2	35	35	35	26		21		26		24	12	24
	3	29	28	29		20		18		20	18	11	18
from	4	24	24	24		16		17		16	13	11	13
	5	19	19	19	12		13		12		9	10	9
Distance	8	10	10	10	7		7		7		5	5	5
	6	15	15	15	10		10		10		7	9	7
	7	12	12	12	9		8		9		6	7	6
	9	8	9	8	6		6		6		5	5	5

				3’			4’		UNITS 3 FEET FROM WALL				6’
Ft.										5’
	1		5	4	5	4	2	4	4	2	4	4	1	4
Ceiling,
	3		16	16	16	13	11	13	11	8	11	11	6	11
	2		15	14	15	12	10	12	11	7	11	11	4	11
from	4		14	14	14	11	10	11	9	8	9	9	6	9
Distance	5		12	12	12	10	9	10	8	7	8	7	5	7
	6		11	11	11	8	9	8	7	7	7	6	5	6
	7		10	9	10	7	7	7	6	6	6	5	5	5
	8		8	8	8	6	6	6	5	5	5	4	5	4
	9	7		7	7	6	5	6	4	5	4	4	4	4

Footcandle values are averaged and rounded off and are based on a minimum of five units. For 100W BT15, multiply footcandles by 0.8

	Candlepower Curve										COEFFICIENTS OF UTILIZATION
	100W A19
											% Effective Ceiling Cavity Reflectance
								80				70			50			30			10		0
													% WALL REFLECTANCE										0
45˚				45˚			50	30	10	50		30	10	50	30	10	50	30	10	50	30	10
					Ratio	2	.58	.56	.54	.57		.55	.53	.55	.53	.52	.53	.52	.51	.52	.51	.50	.49
						1	.62	.61	.59	.61		.60	.59	.59	.58	.57	.57	.56	.55	.55	.54	.53	.52
					Cavity	3	.54	.51	.49	.53		.51	.49	.52	.50	.48	.50	.49	.47	.49	.48	.47	.46
						4	.51	.48	.45	.50		.47	.45	.49	.46	.45	.48	.46	.44	.47	.45	.44	.43
25˚				25˚	Room	5	.47	.44	.42	.47		.44	.42	.46	.43	.42	.45	.43	.41	.44	.42	.40	.40
						7	.42	.38	.36	.41		.38	.36	.40	.38	.36	.40	.37	.35	.39	.37	.35	.34
						6	.45	.41	.39	.44		.41	39	.43	.41	.38	.42	.40	.38	.42	.40	.38	.37
Down		5˚	5˚	Wall		8	.39	.36	.34	.39		.36	.33	.38	.35	.33	.38	.35	.33	.37	.35	.33	.32
	Report 0840FR					9	.37	.33	.31	.36		.33	.31	.36	.33	.31	.35	.33	.31	.35	.32	.31	.30
	Efficiency = 56.0%					10	.35	.31	.29	.34		.31	.29	.34	.31	.29	.33	.31	.29	.33	.30	.29	.28
Downlight Spacing Ratio = 1.0												20% Floor Cavity Reflectance

For 100W BT15, multiply CU. by 0.75

Job Information	Type:
Lightolier a Genlyte Company	www.lightolier.com

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