Lightolier CL-5 manual Quick Calculators & Ceiling Brightness

																Lighting Systems CL-5
1BHF  PG 																Covelite™ -BNQ 5 QFS $SPTT 4FDUJPO
Performance
CANDLEPOWER CURVE							CANDLEPOWER									COEFFICIENTS OF UTILIZATION
180	017	160		Zone	0	22	45	67	90	112	135	157	180		% EFFECTIVE CEILING CAVITY REFLECTANCE
			150	Deg.													80			70			50
			140					CANDELAS
																		% WALL REFLECTANCE
			130	180	1399	1399	1399	1399	1399	1399 1399		1399	1399			50	30	10	50	30	10	50	30	10
														0
			120	175	1400	1395	1385	1392	1408	1429 1447		1449	1468			75	75	75	64	64	64	44	44	44
														1		65	62	59	55	53	51	38	37	35
			110	165	1562	1577	1536	1422	1367	1468 1525		1551	1566	2		56	52	48	48	45	42	33	31	29
			100	155	1650	1644	1561	1439	1278	1432 1517		1559	1575	3		50	44	40	42	38	35	29	27	24
														4		44	38	34	37	33	29	26	23	21
				145	2018	1886	1556	1352	1143	1343 1453		1551	1588
			90											5		39	33	29	33	28	25	23	20	18
				135	2562	2410	1779	1243	967	1201 1379		1601	1680	6		334	29	24	30	25	21	20	17	15
850			80	125	2995	2720	2067	1121	755	1024 1349		1528	1523	7		31	25	21	26	22	18	18	15	13
														8		28	22	18	24	19	16	16	13	11
			70	115	3327	3229	2292	1170	524	846 1087		890	830	9		25	20	16	22	17	14	15	12	10
1700				105	2256	2331	2106	1063	301	618	451	423	384	10		23	18	14	20	15	12	14	11	9
			60														20% FLOOR CAVITY REFLECTANCE
				95	371	540	544	557	88	132	133	150	143
2550			50
				90	0	0	0	0	0	0	0	0	0					Distribution Summary
			40
				0	0	0	0	0	0	0	0	0	0			Zone		Lumens		% Barelamp			Luminaire
3400			30
		20														0 - 90		0			0.0			0.0
0	10
																90 - 180		7840			78.4			100.0
REPORT NO: ITL53019
																0 - 180		7840			78.4			100.0
LAMPS: 2-F54WT5HO
LUMENS: 5000
EFFICIENCY = 78.4%

Quick Calculators & Ceiling Brightness

Readings are rounded off based on initial footcandles at center of 20-foot run of luminaries. Room reflectance are 80% ceiling, 50% wall and 20% floor.

T5 54W, 2 Fixtures, 2 Rows, 2 Walls 14" (0.36) from Ceiling Distance from wall

			2'		4'	6'	8'	10'	12'	14'
			0.61m		1.22m	1.83m	2.29m	3.05m	3.66m	4.27m
From Ceiling		14" (0.36m)		307	92	44	36	44	90	302
	8'6" (2.59m)		91	91	88	85	88	91	91
Distance		9'6" (2.90m)		83	83	82	80	82	83	83
		10'6" (3.20m)		77	77	77	76	77	77	77
		11'6" (3.51m)		77	71	71	71	71	71	71
		12'6" (3.81m)		66	65	66	66	66	65	65
			T5 54W, 1 Fixture, 1 Row, 1 Wall, 14" (0.36) from Ceiling
						Distance from wall
			2'		4'	6'	8'	10'	12'	14'
			0.61m		1.22m	1.83m	2.29m	3.05m	3.66m	4.27m
From Ceiling	14" (0.36m)			294	79	30	18	14	13	12
	8'6" (2.59m)		63	60	52	42	35	30	28
Distance	9'6" (2.90m)			55	53	47	40	34	30	28
	10'6" (3.20m)			50	48	44	38	33	29	27
	11'6" (3.51m)			45	43	40	35	31	28	26
	12'6" (3.81m)			41	39	37	33	29	26	25

Maximum Candle Power: 3463 CD at 117.5°

			T5 54W, 2 Fixtures, 2 Rows, 2 Walls 18" (0.46) from Ceiling
						Distance from wall
			2'		4'	6'	8'	10'	12'	14'
			0.61m		1.22m	1.83m	2.29m	3.05m	3.66m	4.27m
From Ceiling	18" (0.46m)			296	125	91	48	60	122	291
	8'6" (2.59m)		90	91	89	87	89	91	90
Distance	9'6" (2.90m)			82	83	83	82	83	83	82
	10'6" (3.20m)			77	77	78	77	78	77	77
	11'6" (3.51m)			70	70	72	72	72	71	70
	12'6" (3.81m)			65	65	66	66	66	65	65

				T5 54W, 1 Fixtures, 1 Row, 1 Wall, 18" (0.46) from Ceiling
							Distance from wall
			2'			4'	6'	8'	10'	12'	14'
			0.61m			1.22m	1.83m	2.29m	3.05m	3.66m	4.27m
From Ceiling	18" (0.46m)				283	111	44	24	17	14	13
	8'6" (2.59m)			62	60	53	44	36	31	28
Distance	9'6" (2.90m)				54	53	48	41	35	30	28
	10'6" (3.20m)				49	48	44	38	34	30	27
	11'6" (3.51m)				44	43	40	36	32	28	27
	12'6" (3.81m)				39	39	37	33	30	27	25

Data is based on bare lamp photometrics. Dashed lines in beam spreads indicate narrow axes of oval shaped beams.

FC is initial footcandles at center of beam.

L and W are to the point that the candlepower drops 50% of maximum.

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