Ordering Information, Options/Accessories

Mini-Beam HP 2'x4' Recessed Fluorescent MBS2GHP228WA

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Direct/Indirect, Static, 2 Lamp, Linear T5, 28 Watt

Model No. MBS2GHP228120WA

LER = FP - 75.4 IW - 55.4 BF - 0.93 Comparative yearly lighting energy cost per

1000 lumens = $3.18 Report Number: G2005263

Catalog Number: MBS2GHP228120WA

Lamp: FP28/835

Luminaire: MBS with prismatic lens

Ballast: WA Energy Smart

Report is based on 2750 lumens per lamp.

Efficiency: 90.7%
CIE Type-Direct-Indirect
Plane:				0-Deg.			90-Deg.
Spacing Criteria:					1.3		1.4
Shielding Angles:					90			90
Plane:				0-Deg.			90-Deg.
Luminous Length:				46.920			22.920
COEFFICIENTS OF UTILIZATION –
ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.200
RC		80			50			30
RW	70	50	30	50	30	10	50	30	10
1	98	93	89	87	84	81	84	81	79
2	89	81	74	76	70	66	73	68	65
3	80	70	62	66	60	55	64	58	54

CANDELA DISTRIBUTION0
	0.0	45.0	90.0	FLUX
0	1458	1458	1458
5	1446	1471	1490	141
15	1394	1504	1565	422
25	1299	1471	1522	665
35	1164	1350	1376	821
45	989	1160	1245	882
55	776	933	1047	829
65	522	673	779	660
75	261	446	530	441
85	51	131	142	128
90	0	0	0

60'

56'

Fixture: MBS2GHP228120WA

Quantity: 6 Rows of 7 Fixtures

Efficiency: 90.7%

Room Size: 60' x 56' x 9'

Reflectance: 80/50/20

Lumens: T5 Lamp: 2750

Ballast Factor: 0.93

Average Maint. fc: 52.4

Watts/Square Foot: 0.69

4	73	62	54	58	52	46	56	50	46
5	67	55	47	52	45	40	50	44	39
6	62	49	41	47	40	35	45	39	34
7	57	45	36	43	35	30	41	35	30
8	53	41	33	39	32	27	38	31	27
9	50	37	30	36	29	24	35	29	24
10	47	34	27	33	26	22	32	26	22

LUMINANCE DATA IN CANDELA/SQ. METER

AVERAGE AVERAGE AVERAGE AVERAGE

IN DEG.	0-DEG. 45-DEG. 90-DEG.
45	2000.	2345.	2517.
55	1934.	2325.	2610.
65	1766.	2277.	2635.
75	1442.	2464.	2928.
85	837.	2149.	2329.

ZONAL LUMEN SUMMARY

ZONE	LUMENS	% LAMP	% FIXT
00-030	1229	22.3	24.6
00-040	2050	37.3	41.1
00-060	3760	68.4	75.4
00-090	4990	90.7	100.0
90-180	0000	0.0	000.0
00-180	4990	90.7	100.0

		HOURS
INPUT	COST/KWH	BURNED	YEARLY
WATT	.10¢/1000	PER YEAR	COST
148	.000	6570	$97.24
56	.000	6570	$36.19
MBS Savings per fixture			$60.45

MBS vs Typical troffer with Magnetic ballast

and 3 T12 34 watt lamps.

Ordering Information

Explanation of Catalog Number. Example: MBS2GHP228120WA

S	2	G	HP

28					WA

	Mini-Beam	Body Style:	Fixture	Ceiling Type:	High
Direct/Indirect		S = Static	Width	Fits both	Performance
	Recessed			Standard Grid	Prismatic
				and	Lens
	MB	Standard Mini-Beam		Slot Grid
	MB	Standard Mini-Beam

	M3	For NYC Code – Local 3 Manufactured

Options/Accessories

Fusing: Internal fast-blow fusing. Suffix: GLR.

Internal slow-blow fusing. Suffix: GMF.

Electrical/Wiring Options: Consult factory.

Lamp

Quantity

1=1 Lamp

2=2 Lamp

Lamp Quantity:

(By others)

28 = 28 Watt T5

Voltage:		Options:
120 or 277		Add appropriate
UNV=120-277		suffix to catalog
Ballast Type:		no, ie: (GLR)
Energy Smart
WA = Linear T5 Instant
Start Less than
10 THD 56 Input
Watts 0.93
Ballast Factor
Other Ballast Options:
	<20THD <10THD
1-2 Lamp 28W Elec. T5	–	PI †
1-2 Lamp 28W Elec. T5	–	†PG ††

††Instant Start (120V or 277V only) ††Program Rapid Start (UNV only)

Specifications

Performance: In an installation of 2 lamps 28W luminaires in a room cavity of 1, with reflectance of 80% ceiling, 50% walls, 20% floor, the C.U. shall not be less than 0.93. To control veiling reflections, luminaire output in the 30°-90° zone shall not be less than 75.4%.

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–Prismatic virgin acrylic lens.

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 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.
© 2005 a Genlyte company	Section 5/Folio M20-26

MBS2GHP228WA specifications

The Lightolier MBS2GHP228WA is a versatile and efficient lighting solution designed to meet the diverse needs of various commercial and residential applications. This advanced lighting fixture is known for its sleek design, impressive performance, and innovative technology, making it an ideal choice for modern spaces.

One of the standout features of the MBS2GHP228WA is its excellent energy efficiency. The fixture utilizes cutting-edge LED technology, which not only provides bright and consistent lighting but also significantly reduces energy consumption compared to traditional lighting solutions. This efficiency translates into lower utility bills and a reduced carbon footprint, making it an environmentally friendly choice for users looking to minimize their impact on the planet.

The MBS2GHP228WA is designed with versatility in mind. It is available in a range of color temperatures, allowing users to select the perfect ambiance for their space. Whether you need a warm, inviting glow for a cozy living area or a cooler light for task-oriented environments like offices or kitchens, this fixture has you covered. The fixture’s adjustable brightness levels further enhance its adaptability, ensuring that it can be tailored to various tasks and moods.

Another important aspect of the MBS2GHP228WA is its durability. Constructed from high-quality materials, this fixture is built to withstand the rigors of everyday use, making it suitable for both residential and commercial environments. Its long lifespan means reduced maintenance and fewer replacements, ultimately saving time and money over the long term.

Installation is also made easy with the MBS2GHP228WA. It features a user-friendly design that allows for quick and hassle-free setup, whether it's mounted on walls or ceilings. The fixture's lightweight structure simplifies handling and ensures compatibility with a variety of existing infrastructure.

In terms of aesthetics, the MBS2GHP228WA boasts a modern, minimalist design that seamlessly blends into any décor. Its unobtrusive appearance allows it to enhance the overall look of a space while providing effective illumination.

Overall, the Lightolier MBS2GHP228WA is a stylish, energy-efficient lighting solution that offers versatility, durability, and ease of installation. Its advanced features and technology make it an excellent choice for anyone looking to upgrade their lighting while enjoying the benefits of modern design and sustainability.

4	73	62	54	58	52	46	56	50	46
5	67	55	47	52	45	40	50	44	39
6	62	49	41	47	40	35	45	39	34
7	57	45	36	43	35	30	41	35	30
8	53	41	33	39	32	27	38	31	27
9	50	37	30	36	29	24	35	29	24
10	47	34	27	33	26	22	32	26	22

4	73	62	54	58	52	46	56	50	46
5	67	55	47	52	45	40	50	44	39
6	62	49	41	47	40	35	45	39	34
7	57	45	36	43	35	30	41	35	30
8	53	41	33	39	32	27	38	31	27
9	50	37	30	36	29	24	35	29	24
10	47	34	27	33	26	22	32	26	22

Mini-Beam HP 2'x4' Recessed Fluorescent MBS2GHP228WA

Direct/Indirect, Static, 2 Lamp, Linear T5, 28 Watt

Model No. MBS2GHP228120WA

90-Deg.

Luminous Length:

46.920

22.920

45.0

90.0

ZONAL LUMEN SUMMARY

ZONE

LUMENS

% LAMP

% FIXT

148