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48W LED Magnetic Tube Troffer Retrofit Kit - 2x4 Troffer - 4 Tubes - 4800 Lumens - Dimmable

Part Number: MRKDH4-xK48W-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 - 112 lumens per watt
  • Replaces up to 4 17-watt fluorescent T8 tubes
  • Bypass ballast - tool-less installation
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$68.95 ea.
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MRKDH series 48W 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. Field installation is tool-free, with no need to remove the housing or hassle with tombstones and ballasts.

  • Remove or bypass ballast
  • Includes installation hardware
  • 100-277 VAC
  • 1-10V dimmable
  • 50000 hours L70 lifespan
  • Rated IP20 for dry conditions
  • 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


    MRKDH4-xK48W-4S - 48W LED Magnetic Tube Retrofit Kit - 2x4 Troffer - 4,800 Lumens - Dimmable
    48W LED Magnetic Tube Retrofit Kit - 2x4 Troffer - 4,800 Lumens - Dimmable



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    Excellent replacement kit!

    Great product. Super bright lights, instant on, easy to wire and install. Magnetic mounting system works great. Power supply nice and small, easily fits in place of old ballast unit. Instructions are excellent. Almost anyone can do this! Just don’t fall off the ladder.

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    Easy to install nice warm light

    Very easy to install and good brightness. I need 2 more sets

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    LED Retrofit kits make good sense

    I had finally had enough of the fluorescent fixtures in my basement shop- -the constant flickering and hassle of replacing ballasts- -so I ordered three LED retrofit kits. After removing the old bulbs, connectors and wires, installation of the retrofit kits could not have been simpler. Very pleased with the results!

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    no electric conections thru all in the garbage will never buy from your site again

    Helpful? Yes (0) No (2)

    Response from Super Bright LEDs:

    We are sorry to hear that this did not work out for you. There are many different ways to configure this product. This is designed to be installed by a licensed electrician. Please contact our Customer Service team. They will be happy to do a RMA for you.

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