Specification

LDN4 SWITCHABLE
4" OPEN
New Construction Downlight
DOWNLIGHTING LDN4 SWW
Catalog
Number
Notes
Type
D
I
M
M
A
B
L
E
FEATURES & SPECIFICATIONS
INTENDED USE — Typical applications include corridors, lobbies, conference rooms and private offices.
CONSTRUCTION — Galvanized steel mounting/plaster frame; galvanized steel junction box with
bottom-hinged access covers and spring latches. Reflectors are retained by torsion springs. Vertically
adjustable mounting brackets with commercial bar hangers provide 3-3/4" total adjustment. Two com-
bination ½"-3/4" and four ½" knockouts for straight-through conduit runs. Capacity: 8 (4 in, 4 out). No.
12 AWG conductors, rated for 90°C.
Accommodates 12"-24" joist spacing.
Passive cooling thermal management for 25°C standard. Light engine and drivers are accessible from
above or below ceiling.
Ceiling thickness range 1/2" to 1-1/2".
OPTICS — 55° cutoff
80CRI standard (90CRI optional)
ELECTRICAL — Adjustable lumen output with four module options.
MVOLT 120/277V 50/60Hz driver (0-10V & 120V Phase Dimming to 10% or 1% min dimming level). DALI
driver dimming to 1% also available
FCC CFR Title 47 Part 15 Class A for 277V. FCC CFR Title 47 Part 15 Class B for 120V.
L80 @ 60,000 hours
3 SDCM
LISTINGS — Certified to US and Canadian safety standards. Wet location, requires covered ceiling. Title
24 compliant (90CRI, up to 1000lm). Wallwash suitable for damp locations only. Some configurations are
Energy Star certified, please visit www.energystar.gov for specific products.
WARRANTY — 5-year limited warranty. This is the only warranty provided and no other statements
in this specification sheet create any warranty of any kind. All other express and implied warranties are
disclaimed. Complete warranty terms located at:
www.acuitybrands.com/support/warranty/terms-and-conditions
Note: Actual performance may differ as a result of end-user environment and application.
All values are design or typical values, measured under laboratory conditions at 25 °C.
Specifications subject to change without notice.
CAN BE USED TO
COMPLY WITH 2019
JA8 HIGH EFFICACY LED LIGHT
SOURCE REQUIREMENTS
LDN4 AR LS 80CRI
Lumen Output Wattage
30K/80CRI 35K/80CRI 40K/80CRI 50K/80CRI
Delivered Lumens LPW Delivered Lumens LPW Delivered Lumens LPW Delivered Lumens LPW
ALO1 (500LM) 6 570 99 584 101 597 102 616 105
ALO1 (750LM) 9 903 102 924 103 946 105 975 108
ALO1 (1000LM) 13 1268 98 1297 100 1328 102 1369 104
ALO2 (1000LM) 13 1344 108 1375 110 1408 112 1451 115
ALO2 (1500LM) 19 1961 105 2007 106 2055 108 2118 111
ALO2 (2000LM) 25 2471 99 2528 101 2588 103 2668 105
ALO3 (2000LM) 25 2542 103 2601 104 2663 106 2745 109
ALO3 (2500LM) 32 3069 98 3140 99 3214 101 3314 103
ALO3 (3000LM) 38 3485 93 3566 94 3651 96 3764 98
ALO4 (4000LM) 39 4094 106 4178 108 4262 110 4303 111
ALO4 (4500LM) 44 4519 103 4611 105 4703 107 4750 108
ALO4 (5000LM) 49 4914 100 5015 102 5115 104 5165 105
Capable Luminaire
This item is an A+ capable luminaire, which has been designed and tested to
provide consistent color appearance and out-of-the-box control compatibility with simple commissioning.
• All configurations of this luminaire meet the Acuity Brands’ specification for chromatic consistency
• This luminaire is part of an A+ Certified solution for nLight® control networks when ordered with drivers marked by a shaded background*
• This luminaire is part of an A+ Certified solution for nLight control networks, providing advanced control functionality at the luminaire level,
when selection includes driver and control options marked by a shaded background*
To learn more about A+, visit www.acuitybrands.com/aplus.
*See ordering tree for details