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Description

LEDVANCE Sylvania 65584 UltraLED 4ft Stairwell Luminaire — 30W/35W/45W Selectable — 3500K/4000K/5000K — Motion Sensor — White / Ribbed Polycarbonate Lens

The LEDVANCE Sylvania STAIR1A/S45UNVD8SC7/48S/WH/US is a commercial 4ft UltraLED Ultrasonic Stairwell Luminaire engineered to deliver up to 5,445 lumens with field-adjustable 30W/35W/45W power settings (multi-wattage selectable driver, field-adjustable lumen output, variable power settings) and switchable 3500K/4000K/5000K color temperatures (field-adjustable CCT, color temperature selectable, tunable white, switchable Kelvin). Operating on 120–277V electrical systems with 0–10V continuous dimming down to 10%, this luminaire provides an energy-efficient replacement for legacy 2x32W and 2x54W fluorescent fixtures. Built with a cULus Damp Location rating, it is qualified for commercial utility rebates under DLC Premium standards and features an integrated high-resolution ultrasonic bilevel motion sensor for automated stairwell and hallway occupancy control.

Key Features

  • Selectable Wattage: 30W/35W/45W — field-adjustable via sliding switch on side of LED driver (multi-wattage selectable driver / variable power settings)
  • Wattage Equivalency: Replaces legacy 2x32W and 2x54W fluorescent fixtures for up to 48% energy savings
  • Maximum Lumen Output: 5,445 lm at 45W
  • Peak Efficacy: Up to 121 lm/W for high-efficiency commercial operation
  • CRI: >80 color rendering across all settings
  • Selectable CCT: 3500K/4000K/5000K — field-adjustable via sliding CCT selector switch (color temperature selectable / tunable white / switchable Kelvin)
  • Lens & Optics: Ribbed polycarbonate lens for uniform, glare-free distribution (125.3° vertical / 107.7° horizontal spread)
  • Dimming: 0–10V continuous dimming down to 10% standard
  • Voltage: Universal 120–277V AC, 50/60Hz constant current driver
  • Location Rating: cULus Listed for damp locations
  • Operating Temperature: -4°F (-20°C) to 122°F (50°C) ambient range
  • Certifications: DLC Premium Listed, cULus Listed, FCC, RoHS compliant
  • Rated Life: 150,000 hours (L70) @ 25°C per IES TM-21 standards
  • Warranty: 5-year limited warranty — LEDVANCE Sylvania
  • Sensor Control: Integrated ultrasonic bilevel motion sensor with programmable detection range, time delay, and standby dimming levels

Performance & Light Output

Wattage Total Lumens Efficacy Legacy Equivalent
30W 3,750 lm 125 lm/W 2x32W fluorescent (56W system, 46% energy savings)
35W 4,340 lm 124 lm/W 2x32W fluorescent (56W system, 38% energy savings)
45W 5,445 lm 121 lm/W 2x54W fluorescent (87W system, 48% energy savings)

CRI >80 across all configurations. Rated life 150,000 hours (L70) per IES TM-21 testing. Delivers high-efficiency illumination resulting in significant energy reduction compared to traditional fluorescent systems.

Form Factor & Design Profile

Engineered specifically for commercial stairwells and hallways, the 4ft surface-mount luminaire combines a durable powder-coated metal body with a contoured ribbed polycarbonate diffuser to deliver wide vertical and horizontal light distribution (125.3° vertical / 107.7° horizontal spread). Sliding switches on the internal driver and chassis allow installers to tailor lumen output and color temperature on-site.

Smart & Control Features

The UltraLED Ultrasonic Stairwell luminaire features a factory-installed ultrasonic bilevel motion sensor for high-resolution motion detection in enclosed stairwells and corridors:

  • 0–10V Continuous Dimming (Standard): Dims smoothly down to 10% on standard 0–10V low-voltage control circuits.
  • Trimpot #1 (Detection Range & Sensitivity): Left trimpot adjusts motion detection sensitivity across three settings: low, medium, and high.
  • Trimpot #2 (Time Delay): Right trimpot sets the hold time that the fixture remains at 100% output after motion stops to 1 minute, 5 minutes, or 20 minutes.
  • DIP Switches (Bilevel Dimming Level): Dual DIP switches configure the standby dimming level after the time delay expires to Off (Off/Off), 10% (Off/On), 25% (On/Off), or 50% (On/On) until motion is detected again.
  • Integrated Test Mode Button: Sets the time delay to 5 seconds and runs for 5 minutes (indicated by 2 LED flashes at start and 3 LED flashes upon completion) to verify sensitivity and dimming levels. Upon initial power-up, the sensor turns on to 100% and dims to Off after 20 seconds before entering programmed operation.

Electrical

Powered by a constant current driver operating on 120–277V AC. Delivers high electrical efficiency with a Power Factor >90% (>0.90) and Total Harmonic Distortion (THD) <20%. Includes 0–10V dimming down to 10%.

Construction

Housing & Thermal: Powder-coated metal body engineered for commercial durability and thermal dissipation.

Lens & Optics: Ribbed polycarbonate lens engineered for uniform, glare-controlled illumination (125.3° vertical / 107.7° horizontal spread).

Finish: White powder-coated finish formulated for resistance against corrosion and surface wear.

Environmental Sealing: cULus damp location rated. Operating ambient temperature range: -4°F (-20°C) to 122°F (50°C).

Dimensions & Weight: 47.9" L × 4.9" W × 5.6" H.

Installation & Mounting

Standard Mounting: Designed for direct wall or ceiling surface mounting. A mounting template is included standard in the box to simplify layout and fastener alignment.

Certifications & Rebates

  • DLC Premium Listed: Qualifies for maximum commercial utility rebate incentives across regional energy efficiency programs.
  • cULus Listed: Certified for damp locations per UL standards.
  • FCC Compliant: Meets commercial electromagnetic interference standards.
  • RoHS Compliant: Engineered free of toxic lead, mercury, and hazardous substances.

Typical Applications

  • Commercial Egress Stairwells — Integrated ultrasonic bilevel sensor detects movement around corners and landings while maintaining selectable 10%, 25%, or 50% standby light levels
  • Interior Hallways & Corridors — Field-selectable 30W/35W/45W output and 3500K/4000K/5000K CCT allow uniform illumination across varying ceiling heights
  • Multi-Family & Hospitality Passageways — 150,000-hour L70 rated life and automated occupancy dimming minimize maintenance and 24/7 operating costs
  • Educational & Healthcare Facilities — Ribbed polycarbonate lens and powder-coated metal housing provide durable, glare-controlled illumination in high-traffic circulation zones
  • Commercial Office Core Areas — Wall or ceiling surface mounting with included template streamlines retrofit upgrades over legacy fluorescent strips and wraps

What's Included

  • LEDVANCE Sylvania STAIR1A/S45UNVD8SC7/48S/WH/US 4ft UltraLED Ultrasonic Stairwell Luminaire — White
  • Factory-installed Ultrasonic Bilevel Motion Sensor
  • Wall/ceiling installation mounting template
  • Installation and operation manual

Specifications

Dimensions

Length/Depth
47.9 in
Width/Diameter
4.9 in
Height
5.6 in
Weight
8.05 lb

Style & Materials

Material
Metal

Characteristics & Features

Lamp Source
led
Lamp Color
3500K, 4000K, 5000K, Selectable CCT
Color Rendering
80 CRI
Delivered Lumens
5445
Dimmable
Yes

Electrical Information

Voltage
120-277V
Total Wattage
45W

Item Details

MPN
65584
Brand
Sylvania
Catalog Number
STAIR1A/S45UNVD8SC7/48S/WH/US
Family
Ultrasonic Stairwell 1A
UPC
046135655845

Warranty & Certifications

Product Warranty
5 Years
Lamp Life
150,000 Hours
Product Rating
Damp Rated

Shipping & Returns

Shipping: Enjoy free standard shipping on most orders over $99. Exclusions apply for oversized & commercial items. We ship to the contiguous 48 United States.

Returns: We offer a 60-day return window for most items. Products must be in their original, unused condition with all packaging. Exclusions: Special orders, clearance, and custom items.

See Full Shipping Policy | See Full Return Policy

Frequently Asked Questions

How is this 4ft ultrasonic stairwell luminaire mounted?

This 4ft luminaire is engineered for direct wall or ceiling surface mounting in commercial stairwells and hallways. A physical mounting template is included standard in the box to streamline fastener alignment during installation. Any external conduit fittings or auxiliary mounting hardware are sold separately.

How do you adjust the wattage and color temperature on this fixture?

Wattage is selected using a sliding switch located on the side of the internal LED driver, allowing installers to choose between 30W/35W/45W settings. Color temperature is adjusted via a separate sliding CCT selector switch between 3500K, 4000K, and 5000K. Both adjustments should be configured prior to closing the fixture.

What environmental locations and operating temperatures is this fixture rated for?

This stairwell luminaire is cULus Listed for damp locations, making it suitable for interior commercial stairwells, corridors, and conditioned utility spaces. It operates reliably across an ambient temperature range of -4°F (-20°C) to 122°F (50°C). It is not rated for direct outdoor wet location exposure.

How does the integrated ultrasonic bilevel sensor control light output?

The factory-installed ultrasonic sensor features two onboard trimpots to adjust motion sensitivity (low, medium, high) and hold time delay (1, 5, or 20 minutes). Dual DIP switches set the standby bilevel dimming level to Off, 10%, 25%, or 50% when vacant. This specific SKU does not include an emergency battery backup.

What legacy fluorescent fixtures does this luminaire replace and is it rebate eligible?

Operating at 30W/35W/45W and delivering up to 5,445 lumens, this fixture replaces legacy 2x32W and 2x54W fluorescent luminaires for up to 48% energy savings. It is DLC Premium Listed, qualifying it for top-tier commercial utility rebates across participating regional energy programs.
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Sylvania

With a legacy of innovation stretching back over a century, Sylvania is one of the most recognized and trusted names in the lighting industry. As a leading brand from LEDVANCE, Sylvania is built on a history of quality and reliability, offering a total lighting solution for both professional and residential applications. From a single replacement bulb to a complete commercial fixture upgrade, Sylvania provides proven performance you can count on.

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