This innovative tool is designed to simplify window film installation by illuminating the glass surface, making it easy to detect air bubbles trapped beneath the film. The device consists of an LED light source, a prism, and two magnets. The magnets are placed on opposite sides of the glass – one holds the light source with the integrated prism, while the other is used from the outside to move and position the light precisely.

This design allows for accurate and efficient inspection of the film-covered surface, ensuring a smooth and professional finish.
The product operates with 3 AAA batteries (not included).