Our Story
Since our inception in 1945, we’ve been dedicated to the belief that lighting should be simple, hassle-free, and enjoyable: Light Made Easy®.
We were founded by two WWII vets eyeing the possibilities of fluorescent lighting. We have grown into a company with thousands of SKUs featuring the latest LED and wireless technology. Through it all, we’ve never stopped learning and never stopped reinventing ourselves. We continue to create products with distinctive and intuitive features and back them up with top-notch service.
After more than 75 years in business, we remain dedicated to our mission: Light Made Easy.
Company Timeline
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.
Our original logo
Note the image of the atom in the “K.” It was a new era.
Expansion of product line
Keystone expands their product offering to service appliance manufacturers with lighting transformers for inside appliance backsplashes.
Pennsburg
Our Pennsburg, PA, factory opens, focusing on ballast manufacturing and assembly.
Fred Greenberg joins Keystone
The 2nd generation of family ownership enters the company.
Trumbauersville
We open a factory in Trumbauersville, PA, specializing in metal stamping for ballast assembly.
Enters electronic ballast market
Keystone introduces its first line of electronic fluorescent ballasts.
Begins producing fixtures
Keystone begins manufacturing fully assembled fixtures under private labels for national fixture brands.
Ira Greenberg joins Keystone
The 3rd generation of family ownership enters the company.
Enters wholesale market
Keystone aims to expand by entering the electrical wholesale market.
Keystone expands catalog
Keystone’s product category expands beyond fluorescent ballasts into high intensity discharge (HID) ballasts.
Keystone enters Mexico
Keystone opens their first distribution center outside of the USA in Monterrey, Mexico.
A step towards Light Made Easy
Beginning our commitment to Light Made Easy, our first stocking sales agency is opened in Atlanta, GA, to facilitate quicker order fulfillment.
A transition to electronic ballasts
Keystone ships high-powered T12 magnetic ballasts to fixture manufacturers for the last time, ushering in a transition to energy-efficient electronic ballasts.
Keystone enters LED driver market
Keystone leverages its reputation of manufacturing reliable power supplies and begins mass-producing LED drivers.
Stocking agency growth
The 10th stocking sales agency is opened, continuing our commitment to Light Made Easy.
Hard at work
Power supply production output reaches 1 million units per month.
Keystone launches sensor options
Keystone adds photocell and high bay sensors to product offerings.
Introduces LED tube
Keystone produces its first prototype of an LED tube, initiating the company’s entrance into the LED tube market.
Launches FutureFit Kits
Keystone’s line of easy-to-install LED retrofit kits is added to the product catalog.
Keystone moves
Keystone expands to the new Progress Drive location in Montgomeryville, PA.
Raising the bar
Keystone sets the standard for shatterproof glass tubes, meeting all safety regulations for food service applications while offering exceptional performance and efficiency.
Keystone lights up Times Square
One of the largest signs in the world is powered by Keystone’s sign ballasts.
Expands product offering
Keystone introduces HID replacement LED lamps.
Lighting the UN
The United Nations chooses Keystone LED tubes for a massive lighting upgrade at its iconic Manhattan headquarters.
Rapidly growing
Keystone expands operations by moving to a larger, more updated headquarters and distribution center in North Wales, PA.
Geno’s Steaks
The iconic South Philadelphia cheesesteaks establishment chooses to retrofit their lighting with Keystone LED tubes.
Expansion of LED tubes
Keystone offers the widest assortment of LED tubes in the market to provide a solution for virtually every job.
Delivering on Light Made Easy
With 21 distribution centers across the nation, Keystone can facilitate exceptionally fast delivery to every point in the USA.
Introducing Sign Hero
Keystone unveils the revolutionary Sign Hero LED sign tube.
Unveiling the XFit line
Continuing the diversification of our product catalog, Keystone launches the XFit line of quality constructed LED fixtures.
Joining IMARK
Keystone joins the IMARK group to support independent electrical wholesalers by offering our comprehensive line of premium and innovative products to its members.
State-of-the-art
To facilitate the rapid growth of the company, Keystone moves into a large, state-of-the-art structure in Lansdale, PA, formerly a Ford Motor Co. electronics plant.
Goin’ to Kansas City
Keystone opens its 3 million-cubic-foot fulfillment center in Kansas City, MO, improving reach and shortening delivery time to locations across the country.
Expanding the Keystone experience
Keystone establishes Keystone LIVE!, an in-person and virtual demonstration space, and Keystone LIVE! On Tour, a fleet of mobile showrooms, offering more ways to bring Light Made Easy to customers.
A full line of downlights
Keystone introduces a portfolio of LED downlights – including recessed integrated driver, recessed remote driver, recessed emergency driver, wafer, retrofit trim, and disk light – for commercial, residential, new construction, and retrofit projects.
Wireless lighting control made easy
Keystone SmartLoop wireless lighting control – a full solution of wireless load controllers, low bay and high bay sensors, a simple keypad, and an intuitive app – hits the market.
A revolutionary change
Keystone’s groundbreaking, tool-free technology for changing optic lenses, OpticSwap, is incorporated into the company’s area lights. Shortly after, it becomes part of linear high bays and other products.
The dawn of Mistik
Keystone introduces its Mistik RGBW DMX Wall Washer, an ultra-slim linear fixture. It brings a full spectrum of colors and simple installation and programming to outdoor specialty lighting, while still being able to integrate into DMX control solutions.
New regional distribution center
Keystone opens a mammoth, 400,000-cubic-foot center in Phoenix, AZ, giving the company more than 1.2 million cubic feet of space in three regional distribution centers.