Lithonia Lighting LIH1640 Specifications

Catalog

4
)

Number

FEATURES & SPECIFICATIONS

INTENDED USE  The 2GTL LED recessed troffer offers a wide range of lumen packages, color temperatures,

and lens options to meet the lighting needs for a wide range of applications such as schools, offices, and
hospitals. The light engine delivers long life and excellent color to ensure a sound quality, low-maintenance
lighting installation. Certain airborne contaminants can diminish integrity of acrylic. Click here

for Acrylic Environmental Compatibility table for suitable uses.

CONSTRUCTION  Housing formed from 22 gauge cold-rolled steel. Smooth hemmed sides and smooth

inward formed end flanges for safe handling. Lighter-weight fixture allows for safe, easy installation.
OPTICS  Highly transmissive pattern #12 lens diffuses the light source without compromising output.

Pattern # 19 and satin white lens options also available.
ELECTRICAL  Long-life LEDs, coupled with high-efficiency drivers, provide extended service life. 90%

LED lumen maintenance at 60,000 hours (L90/60,000).
eldoLED driver options deliver choice of dimming range, and choices for control, while assuring flicker-free,

low-current inrush, 89% efficiency and low EMI.
Optional nLight® embedded controls make each luminaire addressable - allowing it to digitally communicate

with other nLight enabled controls such as dimmers, switches, occupancy sensors and photocontrols. Simply
connect all the nLight enabled control devices and the GTL luminaires using standard Cat-5 cabling. Unique
plug-and-play convenience as devices and luminaires automatically discover each other and self-commission.

Lumen Management: Unique lumen management system (option N80) provides onboard intelligence that
actively manages the LED light source so that constant lumen output is maintained over the system life,
preventing the energy waste created by the traditional practice of over-lighting.

The step-level dimming option (SLD) allows the system to be switched to 50% power for compliance with
common energy codes while maintaining fixture appearance.

Ballast disconnect is provided where required to comply with U.S. and Canadian codes.
INSTALLATION  LED boards include plug-in connectors for easy of upgradeability. Suitable for direct

insulation contact. Suitable for damp location.
LISTINGS  CSA certified to meet U.S. and Canadian standards. IC rated. DesignLights Consortium®

(DLC) qualifi ed product. Not a ll versions of this pr oduct may be DLC quali fied. Please chec k the DLC
Qualifie d Products Lis t at www.designlights.org/QPL to confirm w hich versions are qu alified.
WARRANTY — 5-ye ar limited warrant y. Complete warran ty terms locate d at

www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx

Note: Act ual performa nce may differ as a resul t of end-user envir onment and applic ation.
All values ar e design or typic al values, measure d under laborator y conditions at 2 5 °C.
Specifications subject to change without notice.

Notes

Type

Specifications

Length: 48 (122.0)
Width: 24 (61.0)
Depth: 3-1/4 (8.2)

All dimensions are inches (centimeters) unless otherwise indicated.

24

(61.0)

GTL Series

2GTL

2' x 4'

LED Recessed Troffer

3-1/

(8.2

ORDERING INFORMATION

Lead times will vary depending on options selected. Consult with your sales representative.

2GTL

Series Length Trim typ e Lumens

2GTL 2' wide

recessed
LED
luminaire

4 4' (blank) Grid

F Overlapping

flange

30L 3000

40L 4000

48L 480 0

60L 6000

72L 72 00

4

Controls

(blank) No controls
N80 nLight wit h 80% (L80) lumen manag ement
N80EMG nLight wi th 80% (L80) lumen mana gement

for use with generator supply emergency

power
N100 nLight without lumen management
N100E MG nLight wit hout lumen managem ent for use

with generator supply emergency power

Options

EL7L 700 lumen emergency battery
EL1 4L 1400 lumen emergency battery
CP Chicago plenum
PWS18 36 6' pre-wir e, 3/8" diameter, 18-gauge, 1-ci rcuit
PWS18 46 6' pre-wir e, 3/8" diameter, 18-gauge, 2-ci rcuit
ABC Door frame gasketing
GLR Fast-blowing fuse
GMF Slow-blowing fuse
LATC Earthquake clip
NPLT Narrow pallet
PAF Paint af ter fab

Example:

1

Door Lens Volta ge Driver Color temperature

(blank) Flush steel, white

lumens

FN Flush aluminum,

lumens

FM Flush aluminum,

lumens

FW Flush aluminum,

lumens

RN Regressed aluminum,

lumens

RM Regressed aluminum,

natural

matte black

white

natural

(blank) #12 pattern

acrylic,

0.125"
thick

A19 #19 pattern

acrylic,

0.156"
thick

SWL Satin white

(blank) MVOLT

120 12 0V
277 277V
347 347V

(120 ­277V)

EZ1 eldoLED

SLD Step-level

EX A1 eldoLED

2

2GTL 4 48L EZ1 LP835

dims to
1 %

3

dimming

dims to
1%, XPoint
wireless
enabled

matte black

RW Regressed aluminum,

white

Accessories: Order as separate catalog num ber.

3

3

5

6

6

DGA 24 Dr ywall grid adap ter for 2x4 recess ed fixture.

Notes
1 Approximate lumen output. Lumen output will vary depending upon lens

option chosen.
2 Not available with EL7L, EL14L, or SLD.
3 When using pre-wire option, use PWS1846.
4 Not available with SLD.
5 Only available with aluminum door.
6 Must specify voltage, 120 or 277.

LP830 3000 K
LP835 350 0 K
LP840 4000 K
LP850 5000 K

LED 2GTL 2X4

2GTL LED Troffer

0°0°0° 90°

180°

1200

1600

2000

Performance Data

Lumen Package Input Wat ts Lumens LP W Lumen Package Input Watt s Lumens LPW

30L LP830 32.02 3347.66 104.55 60L LP830 54.8 5173 .3 94.40
30L LP 835 32.02 3515.04 109.78 60L LP 835 5 4.8 5430.7 9 9.10
30L LP84 0 32.02 369 0.8 115.27 6 0L LP840 54.8 5702.5 104.0 6
30L LP850 32.02 3875.34 121.03 60L LP850 54.8 58 49.1 10 6.74
40L LP830 38.9 3910.8 100 .53 72L LP830 71.0 6 731.1 94.80
40L L P835 38.9 4103.7 105.49 72L LP835 71.0 7066.9 9 9.53
40L LP840 38.9 4290.2 110 .29 72L LP840 71.0 74 21.3 10 4.53
40L LP850 38.9 4393.3 112 .94 72L LP850 71.0 7538.5 106 .18
48L LP830 4 6.9 4583. 3 97. 72

Note: Performance based on standard #12 pattern acrylic lens.

48L L P835 46.9 4815. 2 102.67
48L LP840 46.9 5036.3 1 07.3 8
48L LP850 4 6.9 516 4.2 110 .11

PHOTOMETRICS

2GTL4 48L EZ1 LP835, 4815 delivered lumens, test no. LTL26406P9, tested in accordance to IESNA LM-79.

Coefficients of Utilization

0

119

119

92
85
78
72
67
63
59
55

105

92
82
73
66
60
54
50
46
42

119
101

86
74
65
57
51
46
42
38
35

1

109

2

100

3
4
5
6
7
8
9

116
103

90
80
72
65
59
54
49
45
42

116

99
85
73
64
57
51
46
41

38
35

116

96
80
67
58
51
45
40
36
32
30

400

800

0° 20°

90°

80°

60°

40°

CP Summary

0° 90

2046

0°

2040

5°

1959

15°

1782

25°

1507

35°

1158

45°

795

55°

482

65°

257

75°

96

85°

13

90

2046
2038
1948
1755
1460
1093

726
439
255

94

7

pf 20%
pc 80% 70%50%

pw 70%50%30% 50%30%10% 50%30%10%

RCR

10

MOUNTING DATA

Continuous row mounting of flanged units requires CRE and CRM trim options
(see Options).

NOTE:
1 Recommended rough-in dimensions for F-trim fixtures 24"x48" (Tolerance is +1/4"-0").

Swing-gate range 1-3/16" to 3-15/16". Swing-gate span 23-3/8" to 26-11/16". Fixture
swing-gate points require additional 1-1/16" over nominal fixture height.

Zonal Lumen Summary

Zone Lumens % Lamp % Fixture

111

98
87
77
69
63
57
52
48
44
41

111

95
82
71
63
56
50
45
41
37
34

111

93
78
66
57
50
44
40
36
32
29

0° - 30°
0° - 40°
0° - 60°
0° - 90°
90° - 120°
90° - 130°
90° - 150°
90° - 180°
0° - 180°

1551
2471
4002
4813

2
2
2
2

4815

32.2

51.3

83.1

100.0

0.0

0.0

0.0

0.0

100.0

32.2

51.3

83.1

100.0

0.0

0.0

0.0

0.0

100.0

Constant Lumen Management

Enabled b y the embedde d nLight contr ol, the GTL act ively track s its run-ti me and manages i ts light sour ce such that cons tant lumen ou tput is mainta ined over the
syste m life. Referr ed to as lumen man agement, this f eature elimi nates the ener gy waste crea ted by the tradi tional prac tice of over-lig hting.

39W

31W

2GTL 2X4

LED: One Lithonia Way Conyers, GA 30012 Phone: [phone] Fax: [phone] www.lithonia.com © 2012-2016 Acuity Brands Lighting, Inc. All rights reserved. Rev. 01/14/16

39W

31W