Lightolier 8096 26W Fresnel Lens Quick Calculator, Spacing Ratio =, Coefficients of Utilization

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26W Fresnel Lens

Quick Calculator

60	ROOM SURFACE REFLECTANCES:
	80% Ceiling; 50% Wall, 20% Floor
50	1800 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)
30
20
10

	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

This quick calculator chart determines the number and spacing of 2 Lt. 26 watt Quad Tube units with Fresnel Lens and clear cone, for any level of illumination.

Conversion Factors: 26W, Fresnel Lens with White Cone = F.C.x 0.9; 18W, Fresnel/Clear Cone = 0.8; 18W Fresnel/Clear Cone =0.7.

Spacing Ratio = 1.2

Certified Test Report Number: 2550

COMPUTED BY: LSI PROGRAM “TEST-LITE”

PREPARED FOR: LIGHTOLIER INC.

APERTURE: 7 1/4”

REFLECTOR: SPECULAR CLEAR ALZAK CONE WITH REGRESSED FRESNEL LENS

LAMPS: TWO 26W QUAD TUBE LENS EACH RATED AT 1800 LUMINES.

			CANDELPOWER SUMMARY
ACROSS		Angle	ALONG	22.5	45	67.5	ACROSS LUMENS
45		0	864	864	864	864	864
ALONG		5	852	850	851	868	875	82
		10	836	842	860	887	897
		15	806	818	849	881	888	238
	90	20	750	774	812	835	842
		25	670	703	743	769	771	336
		30	572	602	643	670	677
		35	453	495	533	556	556	328
		40	350	388	416	433	438
300		45	255	284	312	321	322	241
	60	50	207	222	240	249	249
		55	70	82	93	103	105	102
		60	29	31	38	42	41
		65	8	9	12	10	10	15
		70	3	3	6	3	3
600		75	2	2	3	2	2	3
		80	1	1	4	2	1
		85	1	2	5	3	2	4
		90	2	9	14	6	2
900			ZONAL LUMENS AND PERCENTAGES
		Zone	Lumens		% Lamp		% Luminaire
0
	30	0–30		657	18.25			48.66
		0–40		985	27.37			72.97
**EFFICIENCY = 37.5%**		0–60	1328		36.90			98.37
		0–90	1350		37.50			100.00
		40–90		364	10.14			27.03
DATE: NOVEMBER 18, 1992		60–90		21	.61			1.63
		90–180		0	.00			.00
		0–180	1350		37.50			100.00

TESTED ACCORDING TO IES PROCEDURES. TEST DISTANCE EXCEEDS FIVE TIMES

THE GREATEST LUMINOUS OPENING OF LUMINAIRE.

Coefficients of Utilization

					% Effective Ceiling Cavity Reflectance
			80			70			50			30			10		0
							%Wall Reflectance
		50	30	10	50	30	10		30	10	50	30	10	50	30	10	0
								50
RATIO	1	.41	.40	.39	.41	.40	.39	.39	.38	.38	.38	.37	.36	.36	.36	.35	.35
	3	.35	.33	.32	.35	.33	.32	.34	.32	.31	.33	.32	.31	.32	.31	.30	.30
	2	.38	.37	.35	.38	.36	.35	.38	.35	.34	.35	.34	.34	.34	.34	.33	.32
CAVITY	4	.33	.31	.29	.32	.31	.29	.32	.30	.29	.31	.29	.28	.30	.29	.28	.27
	5	.30	.28	.26	.30	.28	.26	.29	.27	.26	.29	.27	.25	.28	.27	.25	.25
ROOM	6	.28	.26	.24	.28	.26	.24	.27	.25	.24	.27	.25	.24	.26	.25	.23	.23
	7	.26	.23	.22	.26	.23	.22	.25	.23	.22	.25	.23	.21	.24	.23	.21	.21
	8	.24	.21	.20	.24	.21	.20	.23	.21	.20	.23	.21	.19	.22	.21	.19	.19
	9	.22	.20	.18	.22	.20	.18	.21	.19	.18	.21	.19	.18	.21	.19	.18	.17
	10	.20	.18	.16	.20	.18	.16	.20	.18	.16	.20	.18	.16	.19	.17	.16	.16

20% FLOOR CAVITY REFLECTANCE

Conversion Factors: 26W, Fresnel Lens with White Cone: C.U. x 0.9; 18W, Fresnel/Clear Cone = 1.1; 18W, Fresnel/White Cone = 1.0.

Calculite® CFL Lensed Downlight 8096

7" Aperture (2) Quad Tube Horizontal Lamp

26W Opal Diffuser and Clear Lens

Quick Calculator

FOOTCANDLES	60				ROOM SURFACE REFLECTANCES:
					80% Ceiling; 50% Wall, 20% Floor
	50				1800 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
		15	30	45		60	75	90	105	120
				AREA PER FIXTURE IN SQUARE FEET
	4		5	6	7	8	9		10	11

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

This quick calculator chart determines the number and spacing of 2 lt.-26 watt Quad

Tube units with Opal Diffuser and Clear Cone for any level of illumination.

Conversion Factors: Opal Diffuser/White Cone = F.C. x 0.9. Clear Lens/Clear Cone = F.C. x 1.2.

Clear Lens/White Cone = F.C. x 1.1; 18W, Opal Diffuser/Clear Lens = 0.8; Opal Diffuser/White

Cone = 0.7; Clear Lens/Clear Cone = 0.9; Clear Lens/White Cone = 0.8.

Spacing Ratio = 1.2

Certified Test Report Number: 2551

COMPUTED BY: LSI PROGRAM “TEST-LITE”

PREPARED FOR: LIGHTOLIER INC.

APERTURE: 7 1/4”

REFLECTOR: SPECULAR CLEAR WITH REGRESSED OPAL DIFFUSER

LAMPS: TWO 26W QUAD TUBE EACH RATED AT 1800 LUMINES.

			CANDELPOWER SUMMARY
ACROSS		Angle	Along	22.5	45	67.5	Across	Lumens
45		0	634	634	634	634	634
ALONG		5	622	622	634	643	622	60
		10	613	613	625	635	615
		15	594	595	608	620	601	171
	90	20	565	567	582	594	576
		25	529	532	549	562	543	251
		30	482	486	503	519	504
		35	430	433	449	464	454	279
		40	370	374	386	401	392
200		45	299	302	313	326	319	241
	60	50	227	227	234	244	238
		55	87	91	96	104	102	104
		60	30	32	37	41	40
		65	7	8	11	10	9	14
		70	2	3	6	3	3
400		75	2	2	3	2	1	2
		80	1	1	4	2	1
		85	1	1	4	3	1	4
		90	1	9	14	7	2
600			ZONAL LUMENS AND PERCENTAGES
		Zone	Lumens		% Lamp		% Luminaire
0
	30	0–30		481	13.38		42.75
		0–40		761	21.15		67.55
**EFFICIENCY = 31.1%**		0–60		1106	30.73		98.15
		0–90		1126	31.30		100.00
		40–90		365	10.16		32.45
DATE: NOVEMBER 19, 1992		60–90		20	.58		1.85
		90–180		0	.00			.00
		0–180		1126	31.30		100.00

TESTED ACCORDING TO IES PROCEDURES. TEST DISTANCE EXCEEDS FIVE TIMES

THE GREATEST LUMINOUS OPENING OF LUMINAIRE.

Coefficients of Utilization

% Effective Ceiling Cavity Reflectance

			80			70			50				30			10		0
							%Wall Reflectance
		50	30	10	50	30	10		30	10	50		30	10	50	30	10	0
								50
RATIO	1	.34	.33	.33	.34	.33	.32	.32	.32	.31	.31		.31	.30	.30	.30	.29	.29
	3	.29	.27	.26	.29	.27	.26	.28	.27	.25	.27		.26	.25	.26	.25	.25	.24
	2	.32	.30	.29	.31	.30	.29	.30	.29	.28	.29		.28	.28	.28	.28	.27	.26
CAVITY	4	.27	.25	.23	.27	.25	.23	.26	.24	.23	.25		.24	.23	.25	.23	.22	.22
	6	.23	.21	.19	.22	.20	.19	.22	.20	.19	.21		.20	.19	.21	.20	.18	.18
	5	.25	.23	.21	.24	.22	.21	.24	.22	.21	.23		.22	.21	.23	.21	.20	.20
ROOM	7	.21	.19	.17	.20	.18	.17	.20	.18	.17	.20		.18	.17	.19	.18	.17	.16
	8	.19	.17	.15	.19	.17	.15	.18	.16	.15	.18		.16	.15	.18	.16	.15	.14
	9	.17	.15	.14	.17	.15	.14	.17	.15	.14	.17		.15	.13	.16	.15	.13	.13
	10	.16	.14	.12	.16	.14	.12	.15	.14	.12	.15 .13 .12				.15	.13	.12	.12
					20% FLOOR CAVITY REFLECTANCE
Conversion Factors: 26W, Opal Diffuser/White Cone: C.U. x 0.9. Clear Lens/Clear Cone: C.U. x 1.2. Clear
Lens/White Cone: C.U. x 1.1; Opal Diffuser/Clear Lens = 1.1; Opal Diffuser/White Cone = 1.0; Clear
Lens/Clear Cone = 1.3; Clear Lens/White Cone = 1.2.
		Job Information										Type:

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