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


The fastest upgrade to existing fluorescent tube fixtures to energy efficient LED lighting. These lamps are ideal for fixtures using double ended lamps, a lamp that have line and neutral pins on the opposite side of each lamp, most common with fluorescent linear lamp fixtures.

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.

Product Features

  • Replacement for conventional fluorescent lamp
  • 50,000+ hour lifetime
  • Approximately 40% more energy efficient than standard F32T8 lamps
  • Environmentally friendly: No mercury used
  • Instant startup
  • Frosted lens eliminates pixelation
  • Integral driver (isolated) eliminates need for external driver or ballast
  • UL classified


Wiring Diagrams

1. Cut all existing connections to ballast as shown below and remove ballast. See Figure A for typical ballast configurations.

D2 wiring diagram step 1

2. Re-wire fixture as shown below. For double-wiring, use either shunted or non-shunted lampholders. (Note: There should not be any exposed wires at the end of installation.)

D2 Wiring Diagram Step 2

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

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.

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The Keystone Difference

Free samples

Friendly customer service

Fast quotes

Quick delivery

Industry-leading warranty

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