Lightolier specifications A7053CL A19 75 Watt, A7053BK A19 75 Watt, Spacing Ratio =

Calculite® Incandescent Open Downlight A7053

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A7053CL A19 75 Watt

40					75 Watt A19
FOOTCANDLES					1190 Lumens Per Lamp
35					RCR = 1 (Rm. Width - 10 x Mtg. Ht. above work plane)
30					RCR = 5 (Rm. Width - 2Mtg. Ht. above work plane)
25					RCR = 10 (Rm. Width - Mtg. Ht. above work plane)
					Room Surface Reflectances:
20					80% Ceiling; 50% Walls; 20% Floor
INITIAL 10
15
0
	20		40	60		80	100	120	140
			AREA PER FIXTURE IN SQUARE FEET
4	5	6	7	8		9	10	11	12

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

Use quick calculator chart to determine spacing of luminaires for desired level of illumination.

Conversion Factors:

40W A-19 (Clear): F.C. X 0.40; (Gold): F.C. x 0.35

60W A-19 (Clear): F.C. X 0.75; (Gold): F.C. x 0.65

75W A-19 (Gold): F.C. X 0.90;

100W A-19 (Clear): F.C. x 1.5; (Gold): F.C. x1.3

4 1/2” Aperture A19

A7053BK A19 75 Watt

40				75 Watt A19
FOOTCANDLES				1190 Lumens Per Lamp
35				RCR = 1 (Rm. Width - 10 x Mtg. Ht. above work plane)
30				RCR = 5 (Rm. Width - 2Mtg. Ht. above work plane)
25				RCR = 10 (Rm. Width - Mtg. Ht. above work plane)
				Room Surface Reflectances:
20				80% Ceiling; 50% Walls; 20% Floor
INITIAL 10
15
0
10	20	30	40	50	60	70	80	90	100	110
		AREA PER FIXTURE IN SQUARE FEET
3	4	5	6	7		8	9		10

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

Use quick calculator chart to determine spacing of luminaires for desired level of illumination.

Conversion Factors:

40W A-19 (Black Alzak): F.C. X 0.40; (Multi-groove): F.C. x 0.35￿

60W A-19 (Black Alzak): F.C. X 0.75; (Multi-groove): F.C. x 0.65￿

75W A-19 (Multi Groove): F.C. X 0.90; ￿

100W A-19 (Black Alzak): F.C. x 1.5; (Multi-groove): F.C. x1.3

Spacing Ratio = 1.2

Spacing Ratio = 1.1

90°

125

60°

250

375

30°

500

ITL, Inc. Report No. 23108

Date: 4-4-78

Efficiency: 58.2%

ITL, Inc. report No. 23108C. Date: 4-4-78

CANDLEPOWER SUMMARY

		ZONAL
DEG	CP	FLUX
0	438
5	440	42
15	420	119
25	511	237
35	274	172
45	155	120
55	2	2
65	0	0
75	0	0
85	0	0
90	0

	ZONAL SUMMARY
ZONE	LUMENS	LAMP	FIXT
0-30	397	33.4	57.4
0-40	570	47.9	82.2
0-60	691	58.1	99.8
0-90	693	58.2	100.0
90-180	0	0	.0
0-180	693	58.2	100.0

90°	CANDLEPOWER SUMMARY
				ZONAL
		DEG	CP	FLUX
100		0	427
		5	422	40
60°
		15	369	105
		25	368	170
200		35	200	126
		45	89	69
		55	0	0
300		65	0	0
		75	0	0
30°		85	0	0
		90	0
400
		ZONAL SUMMARY
	ZONE	LUMENS		LAMP	FIXT
	0-30		315	26.5	61.7
	0-40		441	37.0	86.3
ITL, Inc. Report No. 23151	0-60		510	42.8	99.8
Date: 4-10-78	0-90		511	42.9	100.0
Efficiency: 42.9%	90-180		0	0.0	0.0
ITL, Inc. report No. 23151C. Date: 4-10-78	0-180		511	42.9	100.0

COEFFICIENTS OF UTILIZATION

% EFFECTIVE CEILING CAVITY REFLECTANCE

			80				70			50			30			10		0
		50	30	10				% WALL REFLECTANCE							50	30	10	0
						50	30	10	50	30	10	50	30	10
	1	.65	.63	.62	.63		.62	.61	.61	.60	.59	.59	.58	.57	.57	.56	.56	.55
RATIO	2	.61	.58	.56	.60		.58	.56	.58	.56	.55	.56	.55	.53	.54	.53	.52	.51
	3	.57	.54	.52	.56		.53	.51	.54	.52	.50	.53	.51	.50	.52	.50	.49	.48
	4	.53	.50	.48	.52		.50	.47	.51	.49	.47	.50	.48	.46	.49	.47	.46	.45
CAVITY
	5	.50	.46	.44	.49		.46	.44	.48	.45	.43	.47	.45	.43	.46	.44	.42	.42
	6	.46	.43	.41	.46		.43	.40	.45	.42	.40	.44	.42	.40	.43	.41	.40	.39
ROOM	7	.43	.40	.37	.43		.39	.37	.42	.39	.37	.41	.39	.37	.41	.38	.36	.36
	8	.40	.37	.34	.40		.36	.34	.39	.36	.34	.39	.36	.34	.38	.35	.34	.33
	9	.37	.33	.31	.37		.33	.31	.36	.33	.31	.36	.33	.31	.35	.33	.31	.30
	10	.34	.31	.28	.34		.31	.28	.34	.31	.28	.33	.30	.28	.33	.30	.28	.27

Conversion Factor: For 40W, 60W and 100W A19 units with clear reflector, multiply C.U.’s by 1.0. For 40W, 60W, 75W and 100W A19 units with gold reflector, multiply C.U.’s by 0.9.

COEFFICIENTS OF UTILIZATION

%EFFECTIVE CEILING CAVITY REFLECTANCE

			80				70			50			30			10		0
		50	30	10				% WALL REFLECTANCE							50	30	10	0
						50	30	10	50	30	10	50	30	10
	1	.48	.47	.46	.47		.46	.45	.45	.44	.44	.44	.43	.42	.42	.42	.41	.40
RATIO	2	.45	.43	.42	.44		.43	.42	.43	.42	.41	.42	.41	.40	.40	.40	.39	.38
	3	.42	.40	.39	.42		.40	.38	.40	.39	.38	.39	.38	.37	.39	.37	.37	.36
CAVITY	4	.40	.38	.36	.39		.37	.36	.38	.37	.35	.37	.36	.35	.37	.35	.34	.34
	6	.35	.33	.31	.35		.32	.31	.34	.32	.31	.34	.32	.30	.33	.31	.30	.30
ROOM	5	.37	.35	.33	.37		.35	.33	.36	.34	.33	.35	.34	.32	.35	.33	.32	.32
	7	.33	.30	.29	.33		.30	.29	.32	.30	.28	.32	.30	.28	.31	.29	.28	.28
	8	.31	.28	.27	.30		.28	.26	.30	.28	.26	.30	.28	.26	.29	.27	.26	.26
	9	.29	.26	.24	.28		.26	.24	.28	.26	.24	.28	.26	.24	.27	.25	.24	.24
	10	.27	.24	.23	.27		.24	.23	.26	.24	.23	.26	.24	.22	.26	.24	.22	.22

Conversion Factor: For 40W, 60W and 100W A19 units with black Alzak, multiply C.U.’s by 1.0. For 40W, 60W, 75W and 100W A19 units with Multi-Groove, multiply C.U.’s by 0.9.

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

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.

© 2002 Genlyte Thomas Group LLC (Lightolier Division) • B0204