More than 70 years ago in Philadelphia, Keystone Technologies was founded by Marvin Spielman and Harold Fox, brothers-in-law returning home from World War II. In the beginning their main focus was to manufacturer ballasts and transformers to supply the lighting industry's top fixture manufacturers with them. Now they have a full-lighting catalog with lots of options, including different lighting technologies and product features. Keystone Technologies is dedicated to changing how people think about lighting by make it simple, hassle-free, and enjoyable.
With the evolution of technology, Keystone added LED fixtures and bulbs to their extensive product line. Utilizing their years of expertise in manufacturing ballasts, they were quickly able to develop high quality LED lighting products for various applications.