Photometry Filter

Lumen (lm)Colour Temperature (K)DistributionIESBIM
903,0001 Opening
954,0001 Opening
903,0001 Opening
954,0001 Opening

Key Features

With the version made in corten steel the shapes and the volume of the product are highlighted while, with the version in frosted stainless steel, the colours of the surrounding environment are reflected, generating unexpected flashes. In its simplicity and purity, PASSO can be installed in any type of environment, perfectly fitting into it.



1 Opening


Body in AISI 316L stainless steel or Corten with 3 mm thickness and ground fixing flange made of AISI 316L stainless steel. A4 Stainless steel screws. LED light sources integrated in the body to avoid vandalism. No visible screws. External power supply to be made externally with 24V DC constant current transformer, to be wired in parallel. The Corten version is treated with a fixing process aimed at reducing the steel oxidation. Pre-treatment with atmospheric pressure plasma is carried out on the surface before gluing of the diffuser on  products.

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Lighting Design

Holophane offer a comprehensive and professional lighting design service. Our experienced and qualified lighting designers are on hand to provide full project support ranging from simple calculation plots to full complex lighting designs.


Product Matching

Holophane’s history lies in it being the first company to give practical application to the principles of the prism as the ultimate means of light control, harnessing and redirecting the output of light source by prismatic means to provide the best in cost effective, efficient lighting.


More light, less Investment

We believe that our products are better, more cost-effective and longer-lasting. And we'd like you to put that to the test.