Tubular BSS521

Ø3-1/2” arm mount LED luminaire

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Part of the Tubular family of LED luminaires, the BSS521 is an arm mounted model ideally suited for wall wash and general illumination. Aluminum arms project the Ø3-1/2” extruded aluminum housing from a wall or ceiling. A frosted acrylic lens diffuses the light from high quality diodes, while a generous range of rotation allows for flexible aiming.


Architectural White (semi-matte)
Architectural White (semi-matte)
White (semi-gloss)
White (semi-gloss)
Black (semi-matte)
Black (semi-matte)
Matte Black
Matte Black
Environmental Satin Silver
Environmental Satin Silver
Satin Anodize
Satin Anodize
Inquire about custom finishes


  • Nominal Length: 45”
  • Watts/ft.: 8.5
  • Total Watts: 31.8
  • Luminaire Lumens: 3544
  • Efficacy (LPW): 111

Note: All data reflects fixtures with 3500K LEDs


Fixture constructed of an extruded aluminum housing, frosted acrylic extruded lens and sheet aluminum end caps

Fixture arms are constructed of steel pipe, Ø3/4” extruded aluminum sleeves and machined aluminum end cap couplers

Includes Ø4-3/4” x 1/8” thick aluminum plates and screws for mounting to 4” octagonal wall boxes (by others)

Standard finishes include architectural white (semi-matte), white (semi-gloss), black (semi-matte), matte black, environmental satin silver (alternative to anodize), bronze and primer powder coat, applied post production (consult factory for custom finishes)

Satin anodize finish also available (may require additional lead time)

Available in nominal lengths of 24”–68” single fixtures and continuous runs

Arms allow fixture to project from a wall or ceiling nominally 4”, 6”, 12” or 18”

Fixture housing rotates 338° and is locked in place with hex fastener

Standard integral 120-277V driver offered with 0-10V dimming or non-dim (other dimming driver options available)

Remote mounted emergency battery backup available (ordered separately, consult factory for details)

Standard outputs are 5W and 8W nominal per foot

LEDs available in 3000K, 3500K, 4000K, 5000K, all with a typical 84-85 CRI and color consistency within a 3 step MacAdam ellipse

Life: 50,000 hours L70

Limited five year warranty

UL and C-UL listed for dry and damp locations

IBEW manufactured and assembled

Made in U.S.A.

Product Data

Nominal Fixture Length

  • 24: 24-1/8"
  • 35: 35-1/8"
  • 46: 46-1/8"
  • 57: 57-1/8"
  • 68: 68-1/8"

Correlated Color Temperature

  • 30: 3000K-84 CRI
  • 35: 3500K-85 CRI
  • 40: 4000K-85 CRI
  • 50: 5000K-85 CRI


  • ND: non-dimming
  • D: 0-10V, 1%
  • DTR: triac, 1%
  • DLV: electronic low voltage, 1%
  • HES: Lutron EcoSystem, soft-on/fadeto- black, 1%
  • EL: eldoLED ECOdrive 0-10V, 1%
  • ES: eldoLED SOLOdrive 0-10V, 0.1%
  • ELD: eldoLED ECOdrive DALI, 1%
  • ESD: eldoLED SOLOdrive DALI, 0.1%


  • 5: 5 W/ft.
  • 8: 8.5 W/ft.
  • CF: consult factory for custom wattage

Run Configuration

  • SN: single
  • ST: starter
  • AD: adder
  • TR: terminator

Nominal Arm Length

  • 4: 4"
  • 6: 6"
  • 12: 12"
  • 18: 18"
  • CF: consult factory for custom arm length


BSS521 section

Mounting Options

BSS521 mounting
  • Ø 3-1/2” LED housing with frosted lens
  • Aluminum end cap/arm couplers
  • Threaded arm tube
  • Aluminum arm sleeve
  • Ø 4-3/4” wall box mounting plate
  • Flat head Phillips mounting plate screw

Ordering Code: N/A

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