ABOUT

Keystone Technologies has been engineering lighting solutions for more than 75 years. Two brothers-in-law returning home from World War II formed Keystone in Philadelphia, PA with a singular focus on manufacturing fluorescent ballasts and transformers. With the advent of LED technology, Keystone expanded their product ofrerings to include LED drivers. This was a natural transition for the company as drivers are similar in role and design to ballasts. Keystone was able to apply years of expertise in ballast manufacturing to quickly develop high-quality drivers for a wide variety of applications.