Lightolier Silhouette SA 1BHF

PG

, Performance, Fixture Lengths & Mounting Locations, Type

Lighting Systems Silhouette® SA

1BHF

PG

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Performance

CANDLEPOWER CURVE

180˚	175˚	165˚	155˚	145˚	135˚
750
600					125˚
450		0˚	90˚		115˚
300					105˚
150					95˚
0					90˚
					85˚
					75˚
					65˚
					55˚
0˚	5˚	15˚	25˚	35˚	45˚

REPORT NO: LRL 299-1J

CAT NO: SA14I281WH

LAMPS: 1 F28T5

LUMENS: 2900

EFFICIENCY: 81.7%

		CANDLEPOWER								COEFFICIENTS OF UTILIZATION
ZONE	0	22	45	67	90				% EFFECTIVE CEILING CAVITY REFLECTANCE
DEG.		CANDELAS								80				70			50
180	607	607	607	607	607						WALL REFLECTANCE
175	606	613	571	629	631				70	50	30		70	50	30	50	30	10
165	592	629	668	710	705		0		80	80	80		69	69	69	50	50	50
155	557	626	686	689	682	RATIO	1		72	69	65		62	60	57	43	41	40
145	492	595	598	537	528		2		66	60	55		57	52	48	37	35	33
135	399	496	429	448	461	CAVITY	3		60	52	47		51	45	41	33	30	27
125	313	363	363	437	434		4		54	46	40		47	40	35	29	25	23
115	206	236	312	339	346		5		50	41	34		43	35	30	25	22	19
105	113	171	202	216	217	ROOM	6		45	36	30		39	31	26	23	19	16
90	6	9	22	38	43		8		38	29	23		33	25	20	18	15	12
95	23	47	48	54	57		7		42	32	26		36	28	23	20	17	14
85	5	10	26	43	46		9		36	26	20		31	23	18	17	13	11
75	4	16	34	51	53		10		33	24	18		29	21	16	15	12	9
65	7	20	38	52	58					20% FLOOR CAVITY REFLECTANCE
55	17	32	48	63	63							DISTRIBUTION
45	20	33	45	58	61
35	30	34	47	57	59		Zone				Lumens			% Lamp		% Luminaire
25	35	33	43	50	52			0-90			236			8.1			10.0
15	39	36	37	40	41			90-180			2134			73.6			90.0
5	42	41	40	39	38			0-180			2370			81.7			100.0
0	40	40	40	40	40

Calculations are for 28 watt T5 lamps, for 54 watt T5 lamps multiply by 1.7

Quick Calculator and Ceiling Brightness

	2,000	FOOTCANDLE							20	30		50	70	100
FEET	1,000
	700
SQUARE
	500
IN	400
AREA
	300
ROOM	200
	100
	1	2	3	4	5	7	10	20	30	40	50	70	100	200

NUMBER OF FIXTURES REQUIRED

1.Find room area on vertical axis.

2.Move across chart to footcandle curve.

3.Move down to horizontal axis and read number of fixtures required.

Suspension Length	12"	18"	24"
Footlamberts Above Fixture	223	158	121
Footlamberts Between Fixtures	23.5	25.2	27.9
Ceiling Brightness Ratio	9.9	6.3	4.3

Reflectances of 80% ceiling, 50% walls and 20% floor. Light loss factor is .85, Room size is 50' x 50',

Run Spacing 10’. Ceiling Height 9’ to 12’. Values are taken from the center of the room.

Fixture Lengths & Mounting Locations

4-Foot Joiner		5/8” (1.59cm)
		8-Foot Joiner
	48” (121.92cm)

1-1/4” (3.18cm)

96” (243.84cm)

Sample Run	8-Foot Joiner	4-Foot Joiner	8-Foot Joiner	Cable
Power Feed				Assembly
End Set	96” (243.84cm)	48” (121.92cm)	96” (243.84cm)

20’ 1/8” (609.92cm)

Mounting & Joiner Block Accessories

4.6” (11.68cm)

4” (10.16cm)

8”

(20.32cm)

4” (10.16cm)

8” (20.32cm)
4” (10.16cm)
3.4”	4”
(8.64cm)	(10.16cm)

Cable Assembly	Power Feed End Set	“L”Block with Suspension		“X” Block with Suspension		“T” Block with Suspension
SC36	SE36WH (white)	SL36WH (white)		SX36WH (white)		ST36WH (white)
	SE36AL (aluminum)	SL36AL (aluminum)		SX36AL (aluminum)		ST36AL (aluminum)
Inline block available (SI36WH or SI36AL).
			Job Information		Type:


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We reserve the right to change details of design, materials and finish.

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