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GYMLYTE

GM4B4SVI232

Page 2 of 2

SURFACE FLUORESCENT, 4' OR 8' LENGTH, 12-5/16" WIDE WITH STEEL WIRE DOOR

2 OR 3 LAMP T8 OR T12 

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.
© 2002 Genlyte Thomas Group LLC (Lightolier Division)
A0902

Section 6A/Folio P30-10

Job Information

Type:

OPTIONS & ACCESSORIES

SPECIAL LENSES:

Substitute KA for VI (standard.)

FUSING:

Internal fast-blow fusing.
SUFFIX: 

GLR

.

Internal slow-blow fusing.
SUFFIX: 

GMF

.

RADIO INTERFERENCE FILTER

120 or 277 volt, 50 or 60 Hz. One per fixture

is standard. SUFFIX: 

RF

.

STEM AND CANOPY SETS:

Suspends fixture 6", 12", 18" or 24" from surface.

(Four per fixture is recommended.) 

Catalog Number: ASC6 CSP

(6"), 

ASC12

CSP

(12"), 

ASC18 CSP

(18"), 

ASC24 CSP

(24")

ELECTRICAL/WIRING OPTIONS

Consult factory. 

SPECIFICATIONS

PERFORMANCE:

In an installation of 2 lamp 32W luminaires in a room cavity

ratio of 1, reflectance 80% ceiling, 50% wall, 20% floor, the C.U. shall not be
less than .63. 

SPECIFICATIONS (continued)

MATERIALS: Chassis parts

are die formed 20 gauge cold rolled steel, weld-

ed for rigidity with all seams finished smooth.

FINISH: Chassis exterior

—white baked polyester powdercoat finish

Cavity

—white baked polyester powdercoat, minimum reflectance 84%. 

LENS:

VI

(standard). Pattern 12, .125" nominal thickness, extruded virgin acrylic lens

(average weight per square foot is 6.8 ounces). 

KA

(optional) Extruded acrylic,

square based male conical prism, .156" overall thickness (similar to pattern 19).

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 C-UL.

ORDERING INFORMATION

Explanation of Catalog Number.   Example: GM4B4SVI232120SOGLR

Other dimming options. Consult factory.

GM

GYMLYTE

HEAVY DUTY

SURFACE

LUMINAIRE

FIXTURE
LENGTH:

4

=4' Length

8

=8' Length

B

BODY STYLE:

B

=Surface

4

FIXTURE

WIDTH:

4

=12-15/16"

S

CEILING

TYPE:

S

=Surface

LENS/

SHIELDING TYPE:

VI

=Pattern 12 lens .125"

polycarbonate

(standard)

KA

=Pattern 19 lens .156"

nominal Prismatic lens

LAMP

QUANTITY:

2

=2 Lamp

3

=3 Lamp

LAMP TYPE/

FIXTURE LENGTH:

32

=T8

34

=T12

(Nominal 48")

VOLTAGE:

120 or 277

BALLAST TYPE:

1 & 2 Lamp Mag. T12

LE

< 20THD <10THD

1 & 2 Lamp Elec. T8

SO*

H

I

*

3-2 Lamp Elec. T8 (8')

SO*

H

I

*

1-3 Lamp Elec. T8 

O3*

H3*

2-3 Lamp Elec. T8 (8')

O6*

H6*

LOL T8 Dimming

PS

*

Instant Start Standard

OPTIONS:

Add appropriate
suffix to catalog

no, ie: (

GLR

)

PHOTOMETRY

MODEL NO. GM4B4SVI232120SO

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

66

63

61

60

58

57

57

56

55

2

61

57

53

53

51

48

51

49

47

3

56

51

46

48

45

42

46

44

41

4

52

45

41

43

39

36

42

39

36

5

48

41

36

39

35

32

38

34

31

6

44

37

32

35

31

28

34

30

28

7

41

33

28

32

27

24

31

27

24

8

38

30

25

29

24

21

28

24

21

9

35

27

22

26

22

19

25

21

18

10

32

24

20

23

19

17

23

19

16

room cavity ratio

LER = FL - 52

IW - 62

BF - 0.88

Comparative yearly lighting energy cost per 1000 lumens = $4.61

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