Residentially, the light coverage area for Solatube 160 DS (10 in/250 mm Daylighting System) is approximately 200 square feet (19 sq meter), for a Solatube 290 DS (14 in/350 mm Daylighting System) it is approximately 300 square feet (28 sq meter).   

  • These estimated lighting areas are based upon an average 6' (1.82m) tube length and 8' (2.4m) ceiling height, with the dome being in direct sunlight.
  • Light output will vary depending on the intensity of the sun.  For example, there will be more natural daylight at mid-day than in the early morning or evening.  Light output may also decrease as the length of tube increases beyond the recommended distances.

For Commercial Building applications, please consult a Solatube Daylight Consultant  or Commercial Distributor, or use Solatube photometric data in conjunction with lighting design tools.  Acceptable illuminated areas will greatly vary due to ceiling heights, space uses, and geographic location.