Specification

2FSL42X4
LED: One Lithonia Way Conyers, GA 30012 Phone: [phone] Fax: [phone] www.lithonia.com © 2014 Acuity Brands Lighting, Inc. All rights reserved. Rev. 11/17/14
2FSL4 LED Recessed Lighting 2'x4'
Specifications
Length: 48 (122.0)
Width: 24 (61.0)
Depth: 4-3/8 (11.1)
Notes
With nlight 80% lumen management input watts start at 37 and gradually increasing to 46 at 50,000 hrs when using 48L system.
15-3/4
(40)
24
(61)
4-3/8
(11.1)
Constant Lumen Management
Enabled by the embedded nLight control, the FSL actively tracks its run-time and manages its light source such that constant lumen output is maintained over the system life. Referred
to as lumen management, this feature eliminates the energy waste created by the traditional practice of over-lighting.
01020304050
THOUSAND OPERATING HOURS
01020304
05
0
THOUSAND OPERATING HOURS
POWER INPUT
LIGHT
OUTPUT
100%
80%
100%
80% 37W37W
LIGHT OUTPUT LIGHT OUTPUT
POWER INPUT POWER INPUT
Without Lumen Management
Energy is wasted and light level is inconsistent.
POWER
INPUT
LIGHT OUTPUT
With Lumen Management
Energy is saved and light level remains consistent.
Wasted Energy
Saved Energy
46W
46W
9/16
with accessory 2FS4 F916
9/16 15/16
SS
nLight® Control Accessories:
Order as separate catalog number. Visit www.sensorswitch.com/nLight for complete listing of nLight controls.
WallPod stations Model number Occupancy sensors Model number
On/Off nPODM [color] Small motion 360°, ceiling (PIR / dual tech) nCM 9 / nCM PDT 9
On/Off & Raise/Lower nPODM DX [color] Large motion 360°, ceiling (PIR / dual tech) nCM 10 / nCM PDT 10
Graphic Touchscreen nPOD GFX [color] Wide view (PIR / dual tech) nWV 16 / nWV PDT 16
Photocell controls Model number Wall Switch w/ Raise/Lower (PIR / dual tech) nWSX LV DX / nWSX PDT LV DX
On/Off & Dimming nCM ADCX Cat-5 cables (plenum rated) Model number
10', CAT5 10FT CAT5 10FT J1
15', CAT5 15FT CAT5 15FT J1
MOUNTING DATA DIMENSIONS
All dimensions are inches (centimeters) unless otherwise specified.