LGF (Light Guide Film) Backlit Membrane Switch is a membrane switch with a LED backlit design that combines Light Guide Film (LGF) technology, which enables high visibility in low-light conditions. 

Ultra-Thin and Flexible: With a typical thickness of less than 1 mm, these switches are ideal for products with limited space and can be installed on slightly curved surfaces. 

High Durability: These switches are built for long-term use, often lasting for over a million actuations. They can also be designed to be dustproof and waterproof, with optional IP ratings for demanding environments. 

Energy Efficient:  The LGF backlighting is highly power-efficient by reducing LED quantities, making it an excellent choice for battery-powered or low-power electronic devices.