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D-53 Solarspot

Giving you natural daylight

Solarspot D-53 – 12% brighter than Solatube 330 DS and 30% brighter than the SunPipe 550

The Solarspot D-53 is the most efficient 500mm solar tube system in the world. This mid-sized system is perfect used singly in spaces of up to 32 sqm or used in multiples for larger office or work spaces.



Model D-53
Diameter 550mm (22 inches)
Max recommended length 18.0m
Coverage up to 32 sqm
Efficiency 65%

0-30° angles available
that can be used in multiples to create greater bends

Solarspot D-53 550mm diameter Tubular Daylighting System

Delivering more daylight than any other system of a similar size, the Solarspot D-53 is perfect for lighting medium to large commercial and public spaces. Patented RIR™ technology located in the non-yellowing dome ensure that more daylight is captured and roof level and delivered into the heart of buildings where conventional windows are not an option.

RIR technology uses a series of Fresnel lenses located in the mouth of the system to redirect daylight, direct or diffuse, down into the tube to ensure that the maximum amount of light is delivered to the room below – whatever the weather.

Solarspot D-53 units can be supplied with various internal finishes making them suitable for solid ceilings and suspended ceilings in classrooms, offices, retail environments etc. as well as with ‘open-ceiling’ diffusers for warehouses. Systems can be specified in new-build projects and easily accommodated as part of any refurbishment of an existing building.

Solarspot D-53 components:

  • Non-yellowing dome with RIR™ light capture lenses
  • Convas anti-condensation lens for increase thermal efficiency©
  • Extension tubes available: 200, 300, 400, 600 and 1200mm lengths
  • Flashings suitable for all virtually all roof types
  • Adjustable angle adaptors available: 0-30°, 0-60°, 0-90°
  • Range of circular and square diffusers available for solid and open-ceilings

The Solarspot D-53 lights spaces up to 32 sqm and is ideal for:

  • Educational buildings
  • Retail environments
  • Warehouses
  • Offices
Solarspot flat roof systems

The Solarspot spun aluminium flashing makes it perfect for any flat roof application. The rigid strong, flashing is perfect for GRP or single-ply roofs, and heat-resistant for any hot-process membrane system.

The unit is also a great option for green roofs providing a more aesthetically sympathetic solution than a curb-mount option.

Solarspot curb-mount systems

For roofs requiring a built up-stand, Solarspot curb- flashings are available in a range of sizes, in both square and circular options.

In addition to the range of standard sizes, bespoke units can be supplied to meet individual customers’ specifications.

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