All Products
Electronic Fluorescent
Keystone’s extensive portfolio of electronic ballasts covers all fluorescent lighting applications, including commercial, industrial, and residential type lighting fixtures. Known for their dependability and energy efficiency, every Keystone electronic ballast is “burnt in” at the factory to ensure exceptional performance and superior reliability.
HID
Known for dependability and superior efficiency, Keystone’s high intensity discharge (HID) ballasts are perfectly suited for even the most demanding HID lighting applications. Keystone utilizes sophisticated manufacturing and quality control processes to guarantee outstanding performance in the field.
Available in metal halide, pulse start metal halide, and high pressure sodium, as well as ballast replacement kits.
Sign Ballasts
Keystone’s line of sign ballasts makes commercial sign maintenance simple. With only six ballasts that cover virtually all common plastic sign configurations, you’re sure to have the right ballast for the job.
All Keystone magnetic sign ballasts are designed to operate at a minimum starting
temperature of -20ºF, which is ideal for use in cold outdoor sign applications. With Keystone’s quality and dependability, you can count on your installation to last, maintenance-free, for years to come.
LED Drivers
Keystone’s state-of-the-art LED drivers are being used today in tens of thousands of quality installations. From low to high wattage, constant current and constant voltage, fixed output and dimming, as well as many other available features, Keystone has the drivers available to meet your application requirements.
Low Voltage Transformers
Keystone’s portfolio of durable low-voltage halogen and xenon transformers are ideally suited for both track lighting and recessed lighting applications. Chosen by the leading
designers and architectural fixture manufacturers for reliability and performance,
all Keystone low voltage transformers are 100% factory tested to ensure superior
performance in the field.
Available in a variety of common and specialty configurations, we are sure to have the right transformer for your low voltage lighting system.
Magnetic Fluorescent
Keystone began as a manufacturer of magnetic ballasts over 65 years ago. We continue to be a proven leader today with durable, long lasting, energy efficient magnetic fluorescent ballasts for a variety of applications. While many other manufacturers have discontinued their magnetic ballast lineup, Keystone remains committed to providing replacement magnetic ballasts for the millions of existing magnetic ballast installations.
Keystone also offers electronic "drop in" replacement to many common magnetic ballasts for simple conversion from magnetic to electronic technology. See our Magnetic to Electronic Conversion Guide in the Resources menu for more details.