Lightolier STA 1'x4' 2 LAMP Specification Download Page 2

STACKLYTE

STA 1'x4' 2 LAMP

Page 2 of 2

1'x4' RECESSED FLUORESCENT, 3" DEEP, 8 OR 12 CELL PARABOLIC LOUVER

STATIC OR AIR SUPPLY/RETURN, IES RP1 FOR NORMAL VDT USE

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 2/Folio G40-16 REV. A

Job Information

Type:

OPTIONS & ACCESSORIES

ACCESS PLATE:

Top Wiring access plate is shipped with fixture as standard.

When access plates are required in advance for wiring convenience, specify sepa-
rately. Order Catalog Number: 

ACP CSP

.

ELECTRICAL WIRING OPTIONS: 

Consult factory.

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

standard. SUFFIX: 

RF

.

SPLAY TRIM:

For T ceiling type only. SUFFIX: 

CTZ14 

.

PLASTER FRAMES: 

F type fixtures do not include plaster frames. For individual

or continuous mounting, specify 

PF14

universal frame per fixture.

AIR CLOSURE STRIPS:

SUFFIX 

ACS4

(factory installed). 

DRYWALL KIT:

Order Catalog Number: 

FK91X4

. Request Folio OA30-10.

CHICAGO PLENUM:

SUFFIX: 

CP

.

SPECIFICATIONS

PERFORMANCE:

Luminaire distribution is to be a minimum of 97.5% in the 0°-

60° zone. 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 .80
with a spacing to mounting ratio of 1.6 perpendicular to the lamps. To meet IES RP1
recommended (basic) requirements for VDT areas the VCP (visual comfort probabili-
ty) shall not be less than 90 either crosswise or lengthwise, and the maximum    

SPECIFICATIONS (continued)

average brightness at 65°, 75° and 85° shall not exceed 617, 191 and 162 can-
delas per square meter respectively in the 0°, 45° and 90° horizontal planes.

AIR HANDLING:

(STA only) side air passages for air supply or air return.

Optional side closure strips. Air return is also provided through the lamp com-
partment through fixture body ends. 

MATERIALS: Chassis parts

are die-formed embossed cold rolled steel.

Housing

is embossed for rigidity with all edges turned-in for safe handling.

LOUVER:

Pre-anodized aluminum (Coilzak® or equal).

FINISH: Louver

—semi-specular low iridescence pre-anodized reflector sheet.

Reflector

—95% reflective specular. Phosphate undercoating. 

Chassis exterior

—black baked polyester 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 C-UL.

PHOTOMETRY

MODEL NO. STA1G8LR232120SO

coefficients of utilization — zonal cavity method  

RF

20

20

20

RC

80

50

30

RW

70

50

30

50

30

10

50

30

10

1

77

74

72

70

68

67

67

66

65

2

71

67

64

64

61

59

61

59

57

3

66

61

56

58

54

52

56

53

51

4

62

55

50

53

49

46

51

48

45

5

57

50

45

48

44

41

47

43

40

6

53

46

40

44

40

36

43

39

36

7

50

42

37

40

36

33

39

35

32

8

47

38

33

37

33

29

36

32

29

9

44

35

30

34

30

27

34

30

27

10

41

33

28

32

27

24

31

27

24

room cavity ratio

ORDERING INFORMATION

Explanation of Catalog Number.   Example: STA1G8LR232120SOGLR

To meet NYC Code requirements prefix catalog number
with (N).

BLANK

= Standard

= NYC Code

ST

STACKLYTE:

3" Deep

Precision

Contoured

Pre-

anodized

Aluminum

Louver

BODY STYLE:

A=

Air Handling

S

=Static

1

FIXTURE

WIDTH

CEILING TYPE:

G

= Grid (lay-in T bar)

F

=Flanged (overlap)

Z spline and
plaster frame

T

=Slot grid or       

two-directional
concealed T
(see options)

NUMBER OF

CELLS:

8

=1 row of

8 cells

12

=1 row of

12 cells

LOUVER

FINISH:

L

=Low

Iridescence
Semi-specular
(standard)

P

=Low iridescence

specular

R

REFLECTOR:

R

=Specular

95%
Reflective

2

LAMP

QUANTITY

LAMP/

FIXTURE LENGTH:

32

=T8

34

=T12

(Nominal 48")

VOLTAGE:

120 or 277

OPTIONS:

Add appropriate
suffix to catalog

no, ie: (GLR)

VERTICAL FOOTCANDLES ON BOOK SHELVES

Ceiling

1'

2'

3'

4'

1.00

84.9

85.1

85.2

85.0

84.8

85.0

85.1

85.1

84.9

2.00

64.5

63.9

64.1

64.2

64.3

64.2

64.1

63.8

64.5

3.00

50.1

50.2

50.1

50.1

50.2

50.1

50.1

50.2

50.1

4.00

41.3

41.2

41.3

41.3

41.3

41.3

41.3

41.2

41.2

5.00

36.8

36.7

36.8

36.7

36.7

36.7

36.8

36.7

36.8

6.00

32.1

32.1

32.1

32.1

32.1

32.1

32.1

32.1

32.1

7.00

28.9

28.9

28.9

28.9

28.9

28.9

28.9

28.9

28.9

8.00

27.5

27.5

27.5

27.5

27.4

27.5

27.5

27.5

27.5

9.00

25.9

25.8

25.8

25.8

25.8

25.8

25.8

25.8

25.9

10.00

23.9

23.8

23.8

23.8

23.8

23.8

23.8

23.8

23.8

11.00

21.1

21.1

21.1

21.1

21.1

21.1

21.1

21.1

21.1

12.00

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

0'

1'

2'

3'

4'

Book shelf aisle width, 36"

Floor

LER = FL - 55.0

IW - 61.9

BF - 0.88

Comparative yearly lighting energy cost per 1000 lumens = $4.36

BALLAST TYPE:

1 Lamp Mag. T12

LE

<20THD <10THD

1 Lamp Elec. T8

SO*

H

I

*

LOL Dimming

PS

*

Instant Start Standard

Other dimming options. Consult factory.

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