Specification
One Lithonia Way • Conyers, Georgia 30012 • Phone: 800.279.8041 • www.lithonia.com
© 2013-2018 Acuity Brands Lighting, Inc. All rights reserved
TWR2 LED
Rev. 03/28/18
Lumen values are from photometric tests performed in accordance with IESNA LM-79-08. Data is considered to be representative
of the configurations shown, within the tolerances allowed by Lighting Facts.
Performance
Package
CCT
System
Watts
50K
(5000 K, 67 CRI)
Lumens LPW
P1 5000 K 64W 8,150 127
P2 5000 K 73W 9,700 133
Performance Data
To see complete photometric reports or download .ies files for this product, visit the Lithonia Lighting TWR2 LED homepage. Tested in
accordance with IESNA LM-79 and LM-80 standards
Photometric Diagrams
Lumen Output
Use these factors to determine relative lumen output for average ambient temperatures
from 0-40°C (32-104°F).
Lumen Ambient Temperature (LAT) Multipliers
Ambient Lumen Multiplier
0°C 32°F 1.03
10°C 50°F 1.01
20°C 68°F 1.00
25°C 77°F 1.00
30°C 86°F 0.99
40°C 104°F 0.98
Projected LED Lumen Maintenance
Data references the extrapolated performance projections in a 40°C ambient, based on
6,000 hours of LED testing (tested per IESNA LM-80-08 and projected per IESNA TM-21-11).
To calculate LLF, use the lumen maintenance factor that corresponds to the desired number
of operating hours below. For other lumen maintenance values, contact factory.
Operating Hours 0 25,000 50,000 60,000 100,000
LM Factor
TWR2 LED P1
1.0 >0.96 >0.94 >0.92 >0.90
Electrical Load
Current (A)
Fixture Model No.
System
Watts
120V 277V 347V
TWR2 LED P1 50K MVOLT 64W 0.53 0.23 0.18
TWR2 LED P2 50K MVOLT 73W 0.61 0.26 0.21
Test No. ISF 32822 tested in accordance with
IESNA LM-79-08.
LEGEND
0.2 fc
0.5 fc
1.0 fc
2.0 fc
TWR2 LED P1 50K MVOLT. Mounting height - 15’
Lighting Facts Labels
TWR2 LED P2 50K MVOLT. Mounting height - 15’