Lightolier specifications Calculite CFL Open Downlight 8091CB

Calculite® CFL Open Downlight  8091CB

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Quick Calculator		ROOM SURFACE REFLECTANCES:
FOOTCANDLES	60	80% Ceiling; 50% Wall; 20% Floor
	50	2400 Lumens Per Lamp
		RCR= 1 (Rm. Width= 10xMtg. Ht. above work plane)
	40	RCR= 5 (Rm. Width= 2xMtg. Ht. above work plane)
		RCR=10 (Rm. Width= Mtg. Ht. above work plane)
INITIAL	30
	20
	10

	10		20	30	40	50	60	70
			AREA PER FIXTURE IN SQUARE FEET
2	3	4	5	6		7		8

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

This quick calculator chart determines the number and spacing of 1 It.- 32W PL-T units with white cross blade, for any level of illumination.

Conversion Factors: 32W PLT with Aluminum Cross Blade, f.c. x 0.7; 26W PLT with white cross blade, f.c. x 0.8; 26W with Aluminum Cross Blade, f.c. x 0.6.

Spacing Ratio = 1.1

CERTIFIED TEST REPORT NO. 0194FR COMPUTED BY LSI PROGRAM **TEST-LITE**

CALCULITE 5 3/4" DIA. APERTURE RECESSED FLUORESCENT CROSS BLADE DOWNLIGHT WITH WHITE CROSS BLADE 1-32W PL-T COMPACT FLUORESCENT LAMP.

LUMEN RATING = 2400 LMS. TESTED ACCORDING TO IES PROCEDURES. TEST DISTANCE EXCEEDS FIVE TIMES THE GREATEST LUMINOUS OPENING OF LUMINAIRE.

6" Aperture Triple Tube Cross Blade Louver

180	150	120
	ACROSS
	45
	ALONG
		90
200		60
400
600
0		30
** EFFICIENCY = 33.5% **

Coefficients Of Utilization

		CANDLEPOWER
ANGLE	ALONG 22.5		45	67.5 ACROSS LUMENS
0	593	593	593	593	593
5	575	575	580	584	585	55
10	536	538	541	549	558
15	487	485	491	522	542	142
20	436	427	439	478	506
25	377	366	388	425	460	184
30	309	301	325	366	402
35	228	233	254	279	308	163
40	166	178	185	192	214
45	128	133	126	129	146	105
50	93	93	92	97	104
55	73	73	74	79	84	69
60	58	58	59	64	68
65	45	45	47	51	53	48
70	34	35	36	39	40
75	24	24	26	28	29	28
80	15	16	17	18	20
85	7	7	8	10	11	10
90	3	2	3	4	4
ZONAL LUMENS AND PERCENTAGES
ZONE	LUMENS		% LAMP		%LUMINAIRE
0-30		380	15.86			47.31
0-40		544	22.67			67.61
0-60		718	29.93			89.28
0-90		804	33.53		100.00
40-90		260	10.86			32.39
60-90		86		3.59		10.72
90-180		0		.00		.00
0-180		804	33.53		100.00

				% EFFECTIVE CEILING CAVITY REFLECTANCE
			80			70			50			30			10		0
						% WALL REFLECTANCE
		50	30	10	50	30	10	50	30	10	50	30	10	50	30	10	0
	1	.36	.35	.34	.36	.35	.34	.34	.34	.33	.33	.32	.32	.32	.31	.31	.30
RATIO	2	.33	.32	.30	.33	.31	.30	.31	.30	.29	.31	.30	.29	.30	.29	.28	.27
	3	.30	.28	.27	.30	.28	.27	.29	.28	.26	.28	.27	.26	.27	.26	.25	.25
CAVITY	4	.28	.26	.24	.28	.26	.24	.27	.25	.24	.26	.25	.24	.26	.24	.23	.23
	6	.24	.22	.20	.24	.22	.20	.23	.21	.20	.23	.21	.20	.22	.21	.20	.19
	5	.26	.24	.22	.26	.23	.22	.25	.23	.22	.24	.23	.21	.24	.22	.21	.21
ROOM	7	.22	.20	.18	.22	.20	.18	.21	.19	.18	.21	.19	.18	.21	.19	.18	.17
	8	.21	.18	.17	.20	.18	.17	.20	.18	.17	.20	.18	.17	.19	.18	.16	.16
	9	.19	.17	.15	.19	.17	.15	.19	.17	.15	.18	.16	.15	.18	.16	.15	.15
	10	.18	.16	.14	..18	.16	.14	.17	.15	.14	.17	.15	.14	.17	.15	.14	.13

20% FLOOR CAVITY REFLECTANCE

Conversion Factors: 32W PLT with Aluminum Cross Blade, C.U. x 0.7;

26W PLT with White Cross Blade, C.U. x 1.1; Aluminum Cross Blade, C.U. x 0.8.

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

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