Lightolier 8021WW Page 2 of, Lighting Data, Candlepower Distribution Downlight Spacing Ratio

Calculite® CFL Open Wall Washer  8021WW

Page 2 of 2

Lighting Data

Footcandles On Wall: Multiple 32W Triple Tube Units

		WALL
WALL	WALL		WALL
	WALL	INSIDE CORNER	DOUBLE
	WASHER	WALL WASHER	WALL WASHER

6" Aperture Triple Tube Vertical Lamp

		5'
	3'	5'
		3'
14 f.c.
10 f.c.		14 f.c.

	2' From Wall-2' On Center						2' From Wall-3' On Center						2' From Wall-4' On Center
				2						3						4
								1	28	18	28			1	26	18	26
		1	35	34	35
								2	32	27	32			2	29	16	29
Feet		2	44	44	44	Feet						Feet
								3	30	30	30			3	25	22	25
		3	47	41	47
in						in		4	26	24	26	in		4	20	19	20
		4	38	35	38
Ceiling						Ceiling						Ceiling
								5	19	20	19			5	15	15	15
		5	29	27	29
From						From		6	15	15	15	From		6	11	12	11
		6	22	22	22
								7	12	12	12			7	9	10	9
		7	17	17	17
Distance						Distance						Distance
		9	11	11	11			9	8	8	8			9	6	7	6
		8	13	13	13			8	10	10	10			8	7	8	7

3' From Wall-3' On Center	3' From Wall-4' On Center	3' From Wall-5' On Center
3	4	5

Example: With multiple clear reflector units located 3' from wall and spaced 5' on center (matching downlights 5' on center), the illumination on the wall 3' down from ceiling will be 14 f.c. beneath units and 10 f.c. between units. Footcandle values are averaged and rounded off and are based on a minimum of five units. Conversion Factor 26WTTT: (Clear), f.c. x 0.8.

3' From Wall-6' On Center

6

	1	11	11	11		1	9	8	9
FromDistanceCeiling in Feet	2	18	18	18	FromDistanceCeiling in Feet	2	14	13	14	FromDistanceCeiling in Feet
	9	11	10	10		9	8	8	8
	3	20	20	20		3	16	15	16
	4	22	19	21		4	16	16	16
	5	20	18	20		5	15	14	15
	6	17	16	17		6	13	12	13
	7	15	13	14		7	11	11	11
	8	12	11	12		8	10	9	10

1	9	5		9
2	13	9		13		Feet
3	14		10		14
						in
4	13	13		13		Ceiling
5	12	12		12
6	11	10		11		From
7	9	9		9
						Distance
8	8	8		8
9	7	7		7

1	9	3	9
2	13	6	13
3	13	7	13
4	13	9	13
5	11	10	11
6	9	9	9
7	8	7	8
8	7	7	7
9	5	6	5

Candlepower Distribution Downlight Spacing Ratio 1.1

Downlight	Wall Washer			80
Side	Side
			50	30	10
		1	.58	.56	.55
	Ratio	2	.53	.51	.49
		3	.49	.47	.45
	Cavity	4	.46	.43	.41
		5	.43	.40	.37
	Room	6	.40	.37	.34
		7	.37	.34	.31
		8	.34	.31	.29
		9	.32	.29	.26
		10	.30	.27	.24

Coefficients of Utilization

						% Effective Ceiling Cavity Reflectance
	70			50			30			10		0
			Wall Reflectance
50	30	10	50	30	10	50	30	10	50	30	10	0
.57	.55	.54	.54	.53	.53	.52	.52	.51	.51	.50	.49	.49
.53	.50	.49	.51	.49	.48	.49	.48	.47	.48	.47	.46	.45
.49	.46	.44	.47	.45	.44	.46	.44	.43	.45	.43	.42	.41
.46	.43	.40	.44	.42	.40	.43	.41	.40	.42	.41	.39	.38
.42	.39	.37	.41	.39	.37	.40	.38	.36	.40	.38	.36	.35
.40	.36	.34	.39	.36	.34	.38	.36	.34	.37	.35	.33.	.33
.37	.34	.31	.36	.33	.31	.35	.33	.31	.35	.32	.31	.30
.34	.31	.29	.34	.31	.29	.33	.30	.28	.32	.30	.28	.28
.32	.29	.26	.31	.28	.26	.31	.28	.26	.30	.28	.26	.25
.30	.27	.24	.29	.26	.24	.29	.26	.24	.28	.26	.24	.23
		20% Floor Cavity Reflectance
	Job Information						Type:

631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710

We reserve the right to change details of design, materials and finish.

www.lightolier.com © 2008 Philips Group • A0708

Lightolier is a Philips group brand