Electrochromic glass: what it is and how it is used

28 - 03 - 2025

Electrochromic glass with SPD (Suspended Particle Devices) technology represents one of the most advanced innovations in the field of dynamic light management.

Switchable Smart Film | Innotpec

Electrochromic glass with SPD (Suspended Particle Devices) technology, also known as electric blackout glass, represents one of the most advanced innovations in the field of dynamic light management. This product allows the transparency of the glass to be modulated in seconds, providing immediate control of shading without the use of blinds or other traditional shading systems.
The operation of the SPD film is based on microscopic particles suspended in a fluid contained within the film. When an electrical voltage is applied, the particles align, allowing light to pass through the material and making the surface transparent. In contrast, when no voltage is applied, the particles distribute themselves randomly, blocking the light and generating a shading effect.

An innovation in lighting control: switchable film with SPD technology

Imagine a space where light is always under your control. With a simple touch, the glass transforms from crystal-clear transparency to an elegant blue shade. This is not science fiction but SPD (Suspended Particle Devices) technology, a revolutionary product for the dynamic control of light.
The switchable film with SPD technology is designed to provide adjustable shading on demand. Thanks to its advanced operation, this electrically operated shading glass can adapt to external light conditions, enhancing comfort in any environment. When the system is switched off, the film takes on a blue hue, which is available in two variants: Light Grade with a lighter shade, and Dark Grade with a darker shade for an enhanced shading effect.

Beyond functionality: a new way of experiencing light

Electrochromic glass is not just a technical solution, but an opportunity to rethink spaces in a smarter, more sustainable way.
Architects and interior designers can use it to create bright and welcoming environments without sacrificing privacy and sun protection. In the latest generation of vehicles, electric blackout glass with SPD technology improves driving comfort and reduces the use of air conditioning, contributing to overall energy efficiency. In the glass industry and advanced façade design, this product is also establishing itself as a cutting-edge solution, eliminating the need for traditional shading systems.

Concrete benefits for comfort and sustainability

Switchable film with SPD technology is not only an aesthetic innovation but a real revolution for living comfort and energy saving. It reduces glare without impairing vision, improves user comfort and allows more efficient use of natural light. Moreover, its immediate responsiveness ensures a smooth transition between transparency and shading, adapting perfectly to any requirement.
The potential of electrochromic glass is enormous and extends to various sectors:

  • Automotive: from sunroofs to intelligent windows, for superior driving comfort.
  • Construction and design: façades and skylights that optimise natural light and improve the energy performance of buildings.
  • Public transport and aviation: increased comfort for passengers on planes and trains thanks to customised dimming.
  • Marine industry: a perfect solution for reducing glare and reflections on boats while maintaining a connection to the landscape.

The future of glass is already here

Thanks to SPD technology, electrochromic glass is no longer a simple structural element but a true protagonist in the management of light and comfort. Whether it is a futuristically designed skyscraper or a state-of-the-art car, this innovation offers endless possibilities for a smarter, more sustainable and stylish world.

Do you have an upcoming project that requires innovative electrochromic glass or electric blackout glass solutions? Contact an Innoptec® expert now!