It Began with Ballasts…
Keystone Technologies was founded more than 70 years ago by Marvin Spielman and Harold Fox, brothers-in-law returning home from World War II. Fluorescent lighting was just becoming a popular, energy-efficient alternative to incandescent, so the two budding entrepreneurs formed Keystone at A and Cortlandt Streets in Philadelphia with a singular focus on manufacturing ballasts and transformers. At the time, several of the lighting industry’s key fixture manufacturers called Philadelphia home: Keystone Lighting, Simkar, Crescent Lighting, Progress Lighting, and Sea Gull Lighting. Keystone quickly became a strategic supplier for their ballast and transformer needs.
And Evolved to Drivers…
With the advent of LED technology, we expanded our product offer beyond ballasts 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.
And then to LED Modules and Light Engines…
Keystone’s business grew significantly along with the demand for LED drivers. It was not a big leap to start producing our own modules and Light Engines, which gave us the ability to customize complete LED systems to meet individual customer demands. Keystone has become a primary supplier for a variety of OEM accounts, who have diverse needs and product requirements.
LED Boards lead to LED Tubes
It wasn’t too long before a Keystone engineer slipped an LED board into a tube and Keystone’s LED lamp business was born. Keystone saw immediate success with both SmartDrive (plug & play) and DirectDrive (ballast bypass) technologies. We have established ourselves as a leading resource for an ever-growing list of LED lamp types including linear, compact and HID. LED products represent the fastest growing segment of our business and we are striving each day to bring you the latest in LED lamp technology.
Now in our third generation of family leadership, Keystone is focused on the future, and continues to evolve with the changing demands of the lighting business. As our company experiences unprecedented growth, we pursue a path of leadership and quality, and remain committed to the legacy of truly personal service established when Marvin and Harold made their first sale in 1945.
Meet the Team
Keystone Transformer Co. Founded
Harold Fox and Marvin Spielman establish Keystone at A and Cortlandt Streets in Philadelphia. They focus on two things: becoming experts at manufacturing ballasts and transformers and providing outstanding service to their customers.
Expands product line
Expands product offering to service appliance manufacturers with integrated lighting assemblies inside appliance backsplashes.
Pennsburg, PA factory opens, focusing on ballast manufacturing and assembly.
Fred joins Keystone
2nd Generation of family ownership enters the company.
Trumbauersville, PA factory opens specializing in metal stamping for ballast assembly.
Bold change for the 80's
Keystone introduces first line of electronic fluorescent ballasts.
Bringing back the Keystone
Ira joins Keystone
3rd Generation of family ownership enters the company.
Entered Electrical Wholesale market to service replacement market.
Keystone expands catalog
Expands product category beyond fluorescent ballasts into High Intensity Discharge ballasts.
Keystone expands to Mexico
Keystone opens first distribution center outside the USA in Monterrey, Mexico.
Energy Star Partner of the Year
Keystone's customers win Energy Star Partner of the Year, featuring Keystone electronic ballasts. Customers have since won this prestigious award over 10 times using Keystone power supplies and components.
End of an era
Keystone ships high powered T12 magnetic ballasts to fixture manufactures for the last time, ushering in the transition to energy efficient electronic ballasts.
Keystone begins mass production of LED drivers.
Keystone lights up Times Square
Largest sign in the world features Keystone Sign Ballasts.
United Nations chooses Keystone LED tubes for massive lighting upgrade. Read the Case Study.
State of the Art
Keystone expands operations by moving to state of the art headquarters and distribution center in North Wales, PA.