Product #: LSD-4FT-70-T1-FU1

Architectural Linear Stairwell Light 4FT 90W(LSD)

Architectural Linear Stairwell Light(LSD) – ATG’s Architectural DUO Linear Stairwell Fixtures are available in 2′ and 4′ lengths, with three step power-adjustable wattages and three CCT settings to suit a variety of needs. Featuring a soft-glow acrylic lens, these fixtures reduce glare and provide even light distribution, effectively illuminating stairwells and passageways in both commercial and industrial applications. UL listed for damp locations, the fixtures come standard with a surface/wall mount, with optional V-hook and chain for flexible installation. Additional options include an ultrasonic sensor and emergency unit (EM) for enhanced functionality and safety. The LSD model combines an aesthetically pleasing design with high-performance components, including the option for a concealed motion sensor and emergency battery backup, making it the ideal choice for modern, high-demand spaces.

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Specifications

Input Voltage
120-277VAC
Wattage
70W/80W/90W SELECTABLE
CCT
3500K/4000K/5000K SELECTABLE
Warranty
10 Years
L70 lifetime
>100,000 Hrs
Dimming
0-10V
Dimension
4ft
Lumens
12240 LM
Efficacy
134-140 LM/W

Description

Power & CCT Selectable

3-Step Power Selectable:

2FT Slim Model: Toggle easily between 25W / 20W / 15W.

4FT Standard Model: Toggle easily between 50W / 40W / 30W.

4FT Mid-Output Model: Toggle easily between 65W / 55W / 45W.

4FT High-Output Model: Toggle easily between 90W / 80W / 70W.

3-Step CCT Selectable: A simple field-adjustable switch allows easy

toggling between three color temperatures: 3500K, 4000K, and 5000K.

Power CCT Selectable
Available in 2FT 4FT

Available in 2FT & 4FT

Perfect Spatial Fit: Use 4FT for long corridors and main stairwells;

use 2FT for landing platforms, tight corners, and low-ceiling spots.

Up to 140 LM/W+

140 LM/W+ Efficacy: Ultra-bright light, lower wattage draw.

Max Utility Rebates: Meets strict standards to unlock premium cash-back incentives.

Up to 140 LM/W+
UL & DLC V5.1 Premium and Energy StarPre-installed ultrasonic sensor Listed

UL & DLC V5.1 Premium and Energy StarPre-installed ultrasonic sensor Listed

Pre-installed Ultrasonic Sensor: Smart, integrated motion tracking for hands-free energy savings.

UL & DLC V5.1 Premium: Guaranteed safety standards paired with elite efficiency for maximum utility rebate eligibility.

Emergency Battery Backup optional(sold separately)

Optional Emergency Backup (P/N: STB41A-08WLI-55): Field-installable 8W emergency battery guarantees

uninterrupted, code-compliant illumination during power outages (sold separately).

Emergency Battery Backup optional(sold separately)
Lsd Dimension 02
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