Commercial and industrial luminaire PLANK 121BHK51-31QN4

34.7W LED, 4986 Lumen, 144 Lumen/Watt, 4000 Kelvin. L=1214mm, CRI>80, UGR<25, IP66. System luminaire. Suitable for ambient temperatures of +5°C up to +40°C. Luminaire housing made of industrial grey aluminum. Frame made of chrome steel. With acrylic diffuser satiné diffuse. With plug and coupling for TURBO rail. With integrated emergency supply.

Technical data

Product data
  • Item number121BHK51-31QN4
  • DimensionsL=1214 mm
  • Light sourceLED
  • Equipping / Current feed31.6 W
  • System output34.7 W
Light data
  • Optical light output ratio100 %
  • Light direct/non direct ratio100 / 0 %
  • Absolute luminous flux (Basis: Light source 840)4986 lm
  • Luminaire light output (lm/W)144 lm/W
Unified Glare Rating UGR
X=4H, Y=8H, S=0,25H
Deg. of reflection 70/50/20
  • Perpendicular Zero24.5
  • Perpendicular Ninty24.9

Lighting calculation

Room Type

  • Office Reading & Writing

    (500 lux @ 0.75m)

  • Office Other tasks & Copying

    (300 lux @ 0.75m)

  • Storage Room

    (100 lux @ 0m)

  • Traffic Area Corridors

    (100 lux @ 0m)

  • Private Space

    (200 lux @ 0.75m)

Room Dimensions

Number of Luminaires

lux - Luminaires
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Illumination Value

lux - Luminaires
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