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The LED Authority

30 Watt, Wall/Ceiling Mounted Stairwell LED Fixture

SKU: SF4C23A40ULAG | Ordering Code: SF4C23A40ULAG

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Product Highlights

  • Estimated life of 45.7 years based on 3 hours use per day

Philips-Lightolier 30 Watt, Wall/Ceiling Mounted Stairwell LED fixture. 

Application:  Ideal for stairwells, restrooms, laundry rooms, storerooms and other areas where maximum light levels are not required on a constant basis.

Other wattage/lumen output Stairwell LED fixtures are available.

  • Bi-level luminaire operates at full light output when space is occupied, offering safety and security with full light output only as needed and switches to a low standby light level, providing energy conservation when the space is vacant
  • Optional integrated Low Voltage Ultrasonic (40Khz) Occupancy Sensor or Infrared Occupancy Sensor allowing bi-level light output operation
  • Optional sensor also allows for On or Off functionality
  • Concealed spring assisted pressure latching retains lens
  • Chassis:  Die-formed white baked acrylic enamel
  • End Caps:  20 gauge cold rolled steel post painted baked white enamel
  • Lenses: 1/8" thick DR acrylic, unique co-extrusion, white opaque center, linear prisms to spread up/down light
Full Specs


Philips - Lightolier

Input Watts


Line Voltage



Color Rendering Index is an international system used to rate a lamp's ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more accurately colors generally appear. CRI differences among lamps are not usually visible to the eye unless the difference is more than 3-5 points.

Color Temperature (Kelvin)

An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four digit number followed by (k), such as 2700k. Higher temperatures indicate whiter, "cooler" colors, while lower temperatures indicate yellower, "warmer" colors. Some common Kelvin temperature benchmarks are 2700k (warm white), 3500k (neutral white), 4100k (cool white), 5000k (bright white), and 6500k (daylight).
Color Temperature (Kelvin)

Brightness (lumens)

A rating of the initial light output of a bulb, rated after 100 hrs of operation. Lumens are a measure of how much light falls on one square foot of area, one foot away from the light source.
Brightness (lumens)

Average Rated Life (hr)

A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.
Average Rated Life (hr)

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Length (in)

Width (in)

For fixtures and ballasts, width is the measurement of the total horizontal distance from left to right of the product in inches.
Width (in)

Height (in)

For ballasts and fixtures, height is the measurement of total vertical distance from the top of the product to the bottom expressed in inches.
Height (in)


The decorative finish of the item.
Post painted baked white enamel

Bulb Type Supplied

Type of bulb supplied with the fixture
Bulb Type Supplied


5 years limited
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What are it's measurements


The measurments are listed under the product specs: Height (in) 3.875, Width(in) 6.094 and Length (in)49.563