Kalff's designs were characterized by their functionality, simplicity, and modernist sensibility. He believed that lighting should not only serve its practical purpose but also enhance the overall ambiance of a space. His innovative designs combined new materials and production techniques with artistic flair.
One of Kalff's most notable achievements was the development of the "Philips Light Bulb," which incorporated decorative elements and patterns on the bulb itself. He also designed a wide range of lighting fixtures, including table lamps, floor lamps, and pendant lights, which became iconic examples of mid-century modern design.
In addition to his work in lighting design, Kalff was also involved in graphic design and interior design. He created posters, advertisements, and packaging designs for Philips, as well as contributing to the overall design of their products and showrooms.
Louis Kalff's contributions to design earned him international recognition, and his work continues to be celebrated for its timeless appeal and significant influence on the field of industrial design.