Lightolier CL-2 Quick Calculators and Ceiling Brightness, Candlepower Curve, Report no LRL 896-1D

																			Lighting Systems CL-2
1BHF  PG 																		Covelite™ -BNQ 5 QFS 'PPU 4FDUJPO
Performance
	CANDLEPOWER CURVE								CANDLEPOWER										COEFFICIENTS OF UTILIZATION
						Zone	0	22	45	67	90	112	135	157	180			% EFFECTIVE CEILING CAVITY REFLECTANCE
2000	175	165	155	145	135	Deg.
					125
										CANDELAS									80			70			50
1600
					115	180	955	955	955	955	955	955	955	955	955			50	30	% WALL REFLECTANCE					30	10
1200						175	1146	1112	1096	1005	971	855	825	755	745					10	50	30	10	50
800																	1	53	50	48	45	43	41	31	30	29
					105
						165	1525	1483	1375	1124	955	677	550	427	392	RATIO	2	46	42	39	39	37	34	27	25	24
400					95	155	1799	1718	1558	1200	889	486	281	114	103		3	40	36	33	35	31	28	24	22	20
					90	135	1958	1899	1705	1162	637	103	31	10	0	CAVITY	4	35	31	27	30	27	24	21	19	17
																	6	28	23	20	24	20	17	16	14	12
					85	145	2048	1944	1671	1225	793	289	88	44	34		5	31	27	23	27	23	20	19	16	14
					75	115	1327	1290	1179	955	310	0	0	0	0	ROOM	7	25	20	17	21	17	15	15	12	10
																	9	20	16	13	17	14	11	12	10	8
						125	1707	1635	1550	1103	495	42	0	0	0		8	22	18	15	19	15	13	13	11	9
					65	105	904	879	832	625	168	0	0	0	0		0	18	14	11	16	12	10	11	9	7
																			20% FLOOR CAVITY REFLECTANCE
					55	95	370	354	312	245	54	0	0	0	0
0	5	15	25	35	45	90	121	110	83	35	0	0	0	0	0
REPORT NO: LRL 896-1D						Distribution Summary
LAMPS: 2-F32WT8
LUMENS: 2900						Zone		Lumens		% Barelamp			%Luminaire
EFFICIENCY: 63.7%						0-90		0			0			0
						90-180		3693			63.7			100.00
						0-180		3693			63.7			100.00

Quick Calculators and Ceiling Brightness

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

Distance From Ceiling

	2Lt, 2 Fixtures, 2 Walls, 14" (0.36m) from Ceiling
		Distance from wall
0'	2'	4'	6'	8'	10'	12'	14'

00.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m

14" (0.36m)	188	60	25	25	60	188
8'6" (2.59m)	60	60	59	59	60	60
9'6" (2.90m)	56	57	56	56	57	56
10'6" (3.20m)	52	53	54	54	53	52
11'6" (3.51m)	49	50	51	51	50	49
12'6" (3.81m)	46	48	48	48	48	46

Distance From Ceiling

	2Lt, 2 Fixtures, 2 Walls, 18" (0.46m) from Ceiling
		Distance from wall
0'	2'	4'	6'	8'	10'	12'	14'

00.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m

18" (0.46m)	200	75	30	30	75	200
8'6" (2.59m)	59	60	59	59	60	59
9'6" (2.90m)	55	56	56	56	56	55
10'6" (3.20m)	51	53	54	54	53	51
11'6" (3.51m)	48	50	51	51	50	48
12'6" (3.81m)	46	47	48	48	47	46

			2Lt, 1 Fixture, 1 Wall, 14" (0.36m) from Ceiling
				Distance from wall
	0'		2'	4'	6'	8'	10'	12'	14'
		0	0.61m	1.22m	1.83m	2.44m	3.05m	3.66m	4.27m
From Ceiling	14" (0.36m)		180	51	14	11	8	8
	8'6" (2.59m)		43	40	33	26	21	17
Distance	9'6" (2.90m)		39	36	31	25	21	17
	10'6" (3.20m)		35	33	29	25	20	17
	11'6" (3.51m)		32	30	27	24	20	17
	12'6" (3.81m)		29	28	26	23	20	17

Maximum Candle Power:2048 CD at 125° Brightness ratio on vertical wall above fixture is:

1:1.8 when mounted 14" (0.36m) from ceiling; 1:1.8 when mounted 18" (0.46m) from ceiling.

			2Lt, 2 Fixtures, 1 Wall, 18" (0.46m) from Ceiling
				Distance from wall
	0'		2'	4'	6'	8'	10'	12'	14'
		0	0.61m	1.22m	1.83m	2.44m	3.05m	3.66m	4.27m
From Ceiling	18" (0.46m)		191	66	18	13	9	8
	8'6" (2.59m)		42	39	33	26	21	17
Distance	9'6" (2.90m)		38	35	31	26	21	17
	10'6" (3.20m)		34	32	29	25	21	17
	11'6" (3.51m)		31	30	27	24	20	17
	12'6" (3.81m)		28	28	25	23	20	17

Job Information Type:


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