Our Story

Since our inception in 1945, we’ve been dedicated to 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

1945 Harold and Marvin
1945
1945 Original Logo
1945
1953 Transformers for Appliances
1953
1962 Pennsburg
1962
1975 Fred
1975
1984 Trumbauersville
1984
1996 Electronic Ballasts
1996
2001 Manufacturing Fixtures
2001
2001 Ira
2001
2002 Enters national wholesale
2002
2003 Expands catalog
2003
2003 Expand to Monterray
2003
2004 Step Towards LME Stocking Agency
2004
2005 End of an Era New Elec Ballasts
2005
2007 Enters LED Driver Market
2007
2007 Stocking Agency Growth
2007
2008 1000000
2008
2010 Launches Sensors
2010
2012 LED Tube
2012
2012 FutureFit Kits
2012
2013 Move to Progress Dr
2013
2015 Raising the bar shatterproof
2015
2015 Times Square
2015
2016 LED HID Market
2016
2016 United Nations
2016
2016 Move to North Wales
2016
2016 Geno's Steaks
2016
2017 Expansion of Tubes
2017
2018 Distribution Centers
2018
2018 Sign Hero
2018
2018 XFit
2018
2019 IMark
2019
New HQ Lansdale
2019
Goin to Kansas City
2020
Expanding the Keystone experience
2021
A full line of Downlights
2022
Wireless lighting control made easy
2022
OpticSwap: A Revolutionary Change
2023
Mistik RGBW DMX Wall Washer
2023
2023 Phoenix Dist Center
2023

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.