Lightolier MBS2GPW154 Page 2 of, Photometry, Ordering Information, Options/Accessories, Type, Bf

Mini-Beam 2' x 4' Recessed Fluorescent MBS2GPW154

Page 2 of 2 Direct/Indirect, Static, 1 Lamp, Linear T5, 54 Watt or 28 Watt

Photometry Model No. MBS2GPW154120PG

06984

LIGHTOLIER, INC.

MBS2GPW154120PG

LER = FL -56.2			IW - 61.1		BF - 0.88
Comparative yearly lighting energy cost per 1000 lumens = $7.40
	coefficients of utilization — zonal cavity method							(effective floor cavity reflectance 0.20)
		RF		20					20					20
		RC		80					50					30
		RW	70	50		30		50	30	10		50		30	10
		1	85	82		78		76	74	72		73		71	70
	ratio	2	77	71		66		67	63	59		64		61	58
		3	71	63		56		59	54	50		57		53	49
	cavity	4	65	55		49		52	47	42		51		46	42
		5	59	49		42		46	40	36		45		39	35
	room	6	54	43		36		45	35	31		40		35	31
		7	50	39		32		37	31	27		36		31	27
		8	46	35		28		33	27	23		32		27	23
		9	42	31		25		30	24	20		29		24	20
		10	39	28		22		27	21	18		26		21	17
	visual comfort probability			(rated lumens per lamp ????.)
		room size				ceiling height						ceiling height
	W		L		8.5	10.0	13.0		16.0		8.5	10.0	13.0		16.0
20			20		66	73	83		91		59	67	80		90
20			30		61	66	73		82		54	57	66		77
20			40		59	62	68		74		54	55	58		66
	20		60		58	61	64		70		53	55	56		60
30			20		65	71	81		89		60	68	78		88
30			30		60	64	70		79		56	58	64		75
30			40		58	60	65		71		54	55	57		64
30			60		57	59	61		66		54	54	54		57
	30		80	lengthwise	57	59	60		64	crosswise	54	55	53		56
40			40		58	60	63		69		56	56	57		63
40			20		66	71	80		88		63	69	78		87
40			30	luminaries	61	64	69		77	luminaries	58	59	65		74
40			60		58	58	59		64		55	55	54		56
40			80		58	58	58		61		56	55	53		55
	40		100		59	59	58		60		56	56	53		54
60			30		63	65	68		76		60	61	65		74
60			40		60	61	62		68		58	58	57		63
60			60		59	59	58		62		57	56	54		56
60			80		59	58	56		59		57	56	53		54
	60		100		60	59	56		58		57	56	53		53
100			40		64	65	64		68		63	62	61		66
100			60		63	62	60		62		61	60	57		58
100			80		62	61	58		59		60	59	55		56
	100		100		63	61	57		58		61	59	55		54

Ordering Information

Explanation of Catalog Number. Example: MBS2GPW154120PGGLR

			MB	S			2			G	P
		Mini-Beam		Body Style:			Fixture			Ceiling Type:	Perforated
	Direct/Indirect			S = Static			Width			Fits both	Lamp Shield
			Recessed						Standard Grid
	with Perforated									and
		Mesh Shield								Slot Grid
	MN
	For Local 3
	Manufacturing
For Local 3 Manufacturing, substitute					MN	for	MB	. Example: MNS2GPW154120PGGLR .

Options/Accessories

Fusing: Internal fast-blow fusing. Suffix: GLR.Internal slow-blow fusing. Suffix: GMF.Electrical/Wiring Options: Consult factory.

W

White

Reflector

1

					Options:
Lamp		Voltage:
Quantity		120 or 277			Add appropriate
					suffix to catalog
	Lamp Quantity:				no, ie: (GLR)
				Ballast:
	(By others)	PI	= Linear T5
	54 = HO/T5 54 Watt			Instant Start
	28 = 28 Watt T5			Less than 10 THD
		PG = Programmed
				Start
				Less than 10 THD

DA = DALI digital addressable dimming

Specifications

Performance: In an installation of 1 lamp 54W luminaires in a room cavity of 1, with reflectance of 80% ceiling, 50% walls, 20% floor, the C.U. shall not be less than .82. To reduce glare the average brightness at 65° shall not exceed 2146 candelas per square meter. To control veiling reflections, luminaire output in the 30°-90° zone shall not be less than 74.9%.

Materials: Housing is die-formed 20 gauge steel.

Finish: Chassis exterior–baked white acrylic enamel. Reflector–baked flat white acrylic enamel, minimum 86% reflectance. Phosphate undercoating. Lamp Shield–baked flat white acrylic enamel.

Electrical: Thermally protected class “P” ballast C.B.M. approved, non PCB. If K.O. is within 3" of ballast, use wire suitable for at least 90°.

Labels: I.B.E.W./UL and ULc Listed.

Job Information	Type:
Lightolier a Genlyte Thomas Company		www.lightolier.com
Technical Information: (978) 657-7600 • Fax (978) 658-0595
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.
Copyright 2003 Lightolier		Section5/Folio M20-20