Take the guesswork out of ballast compatibility with DirectDrive LED tubes.


Keystone makes upgrading fluorescent lights to LED easy with our UL Type B DirectDrive tubes. These innovative LED tubes eliminate the need for an external driver or ballast. By using a ballast bypass design, there’s one less possible point of failure, making the fixture more reliable. Ballast bypass LED tubes will also save time finding a compatible ballast.

Upgrading fluorescent lights to LED will save time and money in maintenance costs. When a fluorescent light is frequently turned on and off the lifespan is reduced, whereas LED tubes aren’t affected nearly as much. Upgrading fluorescent lights to LED will also improve the quality and energy efficiency of a lighting system. UL Type B LED tubes prevent energy being wasted as it passes through a ballast.

Direct Drive LED tube benefits

  • Improves reliability and efficiency of fixture with ballast bypass design
  • Saves time, no need to find a compatible ballast
  • Reduces maintenance costs compared to fluorescent equivalents
  • Extends lifespan and conserves energy compared to fluorescent equivalents

Product Features

  • Integral Keystone driver
  • Environmentally friendly: no mercury used
  • Frosted lens eliminates pixelation
  • Suitable for use in dry and damp locations
  • 140+ lumens per watt
  • Improved lamp durability with shatterproof coated glass (optional)
  • DLC listed

UL Recognized Component Mark cULus Classified Mark RoHS Compliant logo 5 Year Warranty

Direct Drive T8 Installation

Direct Drive T8 Case Study

Geno’s Steaks Glows 24 Hours a Day with Keystone’s LED Tubes


Geno’s Steaks, an iconic establishment in South Philadelphia, has been serving their famous cheesesteaks to tourists and locals alike for more than 50 years. Every day, thousands of hungry customers line up to order Geno’s amazing cheesesteaks, a Philly favorite. Overhead, the lights are burning 24 hours a day, 7 days a week, nearly 365 days a year, in both the customer areas and the kitchen. The monthly energy bill was on a steady uphill climb.

Geno’s primary goal was a lighting retrofit that would increase efficiency and reduce energy costs, but there were some additional considerations. Because they are open for business around the clock, scheduling lighting maintenance had been an on-going issue. They wanted a lighting product that was virtually maintenance-free. They also needed the quickest possible installation so that there would be minimal inconvenience to customers and staff, and no impact on business.

Products Used:

  • Keystone Direct Drive T8 LED tubes
  • Keystone Direct Drive Wiring Harness with Power Quick Disconnect

The Solution from Keystone:

Geno’s chose to retrofit with Keystone’s Direct Drive T8 LED tubes. Keystone’s Direct Drive technology bypasses the ballast and instead uses line voltage connected directly to the lamp sockets for maximum energy efficiency. No external ballast or driver is needed.

Geno’s also used Keystone’s innovative wiring harness, designed specifically for Direct Drive LED tube retrofit upgrades. The wiring harness eliminates much of the wiring work that would normally take place on the job site, drastically reducing installation time.


The installation of new LED lighting at Geno’s was completed in a single day, which was much faster than Geno’s anticipated. Costs for lighting have plummeted by 50%. And Geno’s has given an A+ for the impressive light output from the new LED tubes.

Tech Specs

Request a Lighting Layout

Keystone offers complementary lighting layout services for our products, to help take the next step in bringing your project to life. We can provide answers to your lighting questions to determine how many fixtures you need, what types of lamps are best for your applications, and how to save the maximum amount of energy, all within budget.

By utilizing industry leading lighting layout design software, we provide accurate and dependable application renderings. For new constructions or retrofit, simply provide Keystone with a few key project details, and our lighting designers will get to work on your request.

Request a Lighting Layout Create Your Own Indoor Lighting Layout Here

The Keystone Difference

Free samples

Friendly customer service

Fast quotes

Quick delivery

Industry-leading warranty

U.S. based

Find Utility Rebates