BSS120A photo

Cove BSS120A

Asymmetric LED luminaire for use in manufactured cove systems

CutsheetExplore Cove


Light Distribution


The BSS120A is a shallow profile LED luminaire with high performance asymmetric light distribution, designed to integrate with a manufactured cove system (consult factory for compatibility details). The heavy gauge, sheet formed housing is fitted with a primary and saw-tooth reflector to produce a smooth, uniform gradient light across the ceiling plane. A clear dust cover shields the reflector system and 90+ CRI LED modules.

Available for QuickShip.


  • Nominal Length: 4'
  • Output: L: low | R: regular | H: high
  • Lumens/ft.: L: 445 | R: 600 | H: 785
  • Watts/ft.: L: 5.6 | R: 7.9 | H: 11.0
  • Luminaire Lumens: L: 1641 | R: 2211 | H: 2896
  • Efficacy (LPW): L: 79 | R: 76 | H: 72

Note: All data reflects fixture with 3500K LEDs.


Fixture housing constructed of formed and riveted, pre-painted 20 gauge aluminum and heavy gauge steel sheet end caps.

The fixture housing is proportioned and formed to integrate with a manufactured cove system (consult factory for compatibility details).

The multi-reflector optic system is formed from sheet aluminum with finishes of up to 96% reflectance.

Includes a clear acrylic dust cover.

Available in nominal lengths of 2’, 3’, 4’ and 5’.

Fixtures provided with 18 ga. wiring harness for 6 Amp maximum load (consult factory for runs requiring multiple circuits, sensor integration, etc.).

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

Integral 120-277V emergency battery backup available for 4’ nominal non-dim or 0-10V (consult factory for all other lengths/drivers).

Standard outputs are 445, 680 and 745 lumens per foot.

LEDs available in 2700K, 3000K, 3500K, and 4000K, within a 3 step MacAdam ellipse, all with 90+ CRI typical.

A supplemental optic blending film is provided for fixtures that terminate at a perpendicular wall.

Life: 50,000 hours L70.

UL and C-UL listed for dry and damp locations.

Limited five year warranty.

IBEW manufactured and assembled.

Made in U.S.A.

Product Data

Fixture Length

  • 22: 22-1/4"
  • 33: 33-1/4"
  • 44: 44-1/4"
  • 55: 55-1/4"

Correlated Color Temperature

  • 27: 2700K-90+ CRI
  • 30: 3000K-90+ CRI
  • 35: 3500K-90+ CRI
  • 40: 4000K-90+ CRI


  • ND: non-dimming
  • D: 0-10V, 1%
  • DTR: triac, 1%, (120V ONLY)
  • DLV: electronic low voltage, 1%, (120V ONLY)
  • HES: Lutron EcoSystem, soft-on/fade-to-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%

Light Output

(lumens per foot)

  • L: low – 445
  • R: regular – 600
  • H: high – 785
  • CF: consult factory for custom output


  • ED: emergency driver (4' non-dim or 0-10V only)


Mounting Options

  • Fixture housing engages with an aligning feature within the cove system.
  • NOTE: A minimum distance of 10” is suggested from the top of the fixture to the ceiling surface for best blending of light.

Ordering Code: N/A

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