Electrochromic Glass

-Switchable Dimmable and Durable

Electrochromism refers to the phenomenon in which the optical properties (reflectivity, transmittance, absorption, etc.) of materials undergo stable and reversible color changes under the action of an external electric field, which is manifested as reversible changes in color and transparency in appearance. Materials with electrochromic properties also names as  electrochromic materials.

Electrochromic materials are a new type of functional materials that have a wide range of uses in information, electronics, energy, construction, and national defense.The new Electrochromic smart EPC glass is the best choice for outdoor shading. It can meet the needs of indoor shading without losing an inch of outdoor scenery.

Electrochromic smart Film working priciple:

When an AC voltage passes to the EPC(electric polarized crystal)film, the particles are  under the action of the electric field, and light is transmitted through. Glass can change from opaque (DARK) state to transparent state in 1 second in the visible light range, and from transparent to opaque (DARK) in 1-5 seconds, at this time, it can block more than 95% of visible light and absorb 99.9% of UV light.

General features Standard film widths: 1200mm, 1500mm.

Standard formats: Rectangular sheets obtained by laser cutting, according to required dimensions.

Cutting and customisation: Possibility of cutting curved shapes, pre-cutting the strip for the electrodes, applying the electrodes to positions requested by the customer from a range of standard combinations.

Power supply: The BLUECHROMIC SPD switchable film is powered at 110Vac for the LIGHT GRADE version and 220Vac for the DARK GRADE / 50-60Hz version via transformer. Possibility of using our central dimmer.


Total Transmittance (VLT)
Light Grade Switched off: ≤10% Switched on: ≥60%
Dark Grade Switched off: ≤1% Switched on: ≥35%

Laminated Glass
Light Grade SPD (4 mm Clear+0,76EVA+SPD+0,76EVA+4 mm Clear)OFF100.43MEASURED
Dark Grade SPD (4mm Clear+0.76EVA+SPD+0.76EVA+4mm Clear)OFF20.39
Light Grade SPD + IR film (4mm Clear+0.38EVA+IR+0.38EVA+SPD+0.76EVA+4mm Clear)OFF90.3SIMULATED
Light Grade SPD + Double Low-E coated glass (5mmSKN165+0.76EVA+SPD+0.76EVA+4mm Clear)OFF80.21
Light Grade SPD + Double Low-E coated glass (5mmSKN154+0.76EVA+SPD+0.76EVA+4mm Clear)OFF70.19

SPD Elelctrochromic Glass Advanages

Good shading: it is in a light-transmitting state when on, and can absorb 99% of visible light when it is off.

One-button control: Transparency and darkness are converted into each other, and remote control is easy to control.

Fast transitions: state transitions  within 1 to 5 seconds.

Two effects: blocking light and expanding the field of view .

The light changing by ourselves: People control the light.

Good thermal insulation: can block 99.9% of ultraviolet radiation, high thermal insulation performance.

Strong weather resistance: the operating temperature is -35C°~85C°, suitable for various climatic conditions.

Energy saving: reduce energy usage costs such as cooling costs, heating costs, lighting costs, etc.

Comfort Protection: Increase the comfort of the space and protect the internal items.

Popular Suitable application scenarios

Electrochromic smart glass Applications including :building exterior walls, exterior windows, skylights, skylights, sun rooms, partition walls, etc. Its laminated glass offers a unique combination of sustainable regulation and safety. Multi-control methods and Offer ODM and OEM Service.