Bartco Lighting SK21 linear architectural fixture


Ø13/16” 120V dimmable plug and play LED luminaire

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The proprietary SK21 is a miniature linear, line voltage LED luminaire that mounts, powers and aims with great ease. The extruded aluminum fixture mounts with a pair of small spring clips. It powers, simply by inserting the accessory cord and plug. Seamlessly row mount by connecting adjacent fixtures end-to-end or use interconnect cables for illuminated runs up to 40’. With the hardwire adapter, fixtures can dim to 5% with 0-10V controls. The SK21 is available in four lengths with four color temperatures and 95 CRI.



  • Modular with quick connects
  • Field Serviceable
  • Simple, robust connections
  • Seamless row mount up to 40 feet
  • Continuous line of light
  • Uniform luminance throughout connections
  • Effortless dimming integration
  • Flexible for corners and direction changes
  • High efficiency LED sources


  • Nominal Length: 4'
  • Lens: F: White | C: Clear
  • Lumens/ft.: F: 250 | C: 325
  • Watts/ft.: F: 3.5 | C: 3.5
  • Luminaire Lumens: F: 951 | C: 1226
  • Efficacy (LPW): F: 71 | C: 93

Note: All data reflects fixtures with 3500K LEDs


Fixture constructed of an extruded aluminum housing in satin anodize finish, white or clear polycarbonate lens and male/female interconnects

Available in nominal lengths of 1’–4’ for single fixture use or continuous runs

Single and Starter fixtures provided with a cord and plug for non-dimming applications or hardwire adapter for dimming applications and a power termination cap

Adder fixtures provided with a machined aluminum seam cover to conceal the joint between fixtures and carry the electrical ground

Integral 120V driver features 0-10V dimming down to 5% or non-dim

Fixtures can join directly end to end for continuous runs or be separated with 6” or 12” accessory interconnect cables

Maximum illuminated run length is 40’ with any combination of fixture lengths

Mounting accomplished with included, screw mount accessory spring clips, which enables 360° aiming

Standard light output is 250–325 lumens per foot

LEDs available in 2700K, 3000K, 3500K and 4000K, within a 3 step MacAdam ellipse, all with 95 CRI typical

Life: 40,000 L70 hours at 40°C ambient

UL and C-UL listed for dry and damp surface mount and portable locations

Five year limited warranty

Assembled in U.S.A.

Product Data

Nominal Fixture Length

  • 1: 14-5/16”
  • 2: 21-7/16”
  • 3: 33-1/4”
  • 4: 45-1/8”

Actual dimension dependent on run configuration

Correlated Color Temperature

  • 27: 2700K-95 CRI
  • 30: 3000K-95 CRI
  • 35: 3500K-95 CRI
  • 40: 4000K-95 CRI


  • ND: non-dimming
  • D: 0-10V dimming, 5%

Run Configuration

  • PTS: single or starter fixture w/power cord
  • SMS: single or starter fixture w/hardwire adapter
  • ADD: adder fixture


  • F: white polycarbonate
  • C: clear polycarbonate


SK21 section

Mounting Options

SK21 mounting
  • Each fixture is provided with one pair of screw mount spring clips
  • Use appropriate fastener through 5/32" hole

Ordering Code: N/A

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