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40W LED Magnetic Tube Troffer Retrofit Kit - 2x2 Troffer - 4 Tubes - 4900 Lumens - Dimmable

Part Number: MRKDH2-xK40W-4S


  • Easiest and most versatile fluorescent bulb retrofit solution
  • Magnetic LED strips and driver attach directly to troffer or strip fixture
  • Round lens diffuses light and protects internal components
  • DLC Listed - 123 lumens per watt
  • Replaces up to 4 17-watt fluorescent T8 tubes
  • Bypass ballast - tool-less installation
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$52.95 ea.
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MRKDH series 40W LED Retrofit Kit is the easiest solution for replacing fluorescent bulbs in troffers, wraparounds, and strip fixtures. Each light bar is built with a diffuser lens that mimics the look of traditional tubes, ideal for retrofitting exposed troffers with grid louvers and common fluorescent strip fixtures. All with magnetic backing, the complete kit includes 4 pre-wired LED light bars and a quick connect driver. Tool-less installation is easy and reduces ladder time. Simply bypass or remove ballast and conveniently fit between sockets with no need to remove the housing or hassle with tombstones.

Product Details:
  • Remove or bypass ballast
  • Available without diffuser lens
  • 100-277 VAC
  • 1-10V dimmable
  • 50000 hours L70 lifespan
  • Rated IP20 for dry conditions
  • DLC Standard, ETL Classified - if applied as a retrofit
  • 5 year warranty

5 Years
Super Bright LEDs, Inc. offers a 5-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. If the same product is no longer available, a product of equal value may be substituted. Read More
ETL Classified
A product that bears an ETL-Certified label has been evaluated by a Nationally Recognized Testing Laboratory (NRTL) and meets national product safety standards. An ETL certification is accepted in the U.S. and in Canada.
The DesignLights Consortium® (DLC®) partners with energy-efficiency groups and utility companies to establish a set of standards for commercial LED light fixtures. The product is tested and must meet quality, energy-efficiency, and performance requirements to be added to the DLC's Qualified Products List. For more information, click here. To view all of our DLC® listed products, click here
  • Suspended Grid Ceilings
  • Troffer Fixtures
  • Hospitality
  • Healthcare
  • Education
  • Drop Ceilings
  • Wraparound Fixtures
  • Strip Fixtures
  • Vapor Tight Fixtures
  • Linear Fluorescent Fixtures
  • Offices
  • Retail
  • Conference Rooms


MRKDH2-xK40W-4S - 40W LED Magnetic Tube Retrofit Kit - 2x2 Troffer - 4,000 Lumens - Dimmable
40W LED Magnetic Tube Retrofit Kit - 2x2 Troffer - 4,000 Lumens - Dimmable



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Very easy and clean install in about 10 minutes. Hardest part was removing all of the old ballast and hardware that went into the trash. Between the magnetic mounting and the easy push-in wiring connections of the lights into the controller, it couldn't have been easier. Provides strong white light for our old workbench light fixtures. Will certainly be buying more.

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My guys reported it was easy to install and customer was happy with increased light levels

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