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Shipping is free when you purchase:

  • • $250 worth of 2ft or 4ft tubes (excluding U-bend)
  • • Or $750 in 5ft - 8ft tubes
  • • Or $500 of any other items

Free shipping is automatically calculated at checkout. Not available in Alaska, Hawaii, or Canada.

Shipping is free when you purchase:

  • • $250 worth of 2ft or 4ft tubes (excluding U-bend)
  • • Or $750 in 8ft tubes
  • • Or $500 of any other items

Free shipping is automatically calculated at checkout. Not available in Alaska, Hawaii, or Canada.

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DLC 4ft LED Tube


Rebate Qualified 4ft DLC T8 LED Tube Light, 2000 Lumens, 18W Replaces 32W Fluorescent

Model #: 4RLXT8X018UD

Rebate-qualified DLC rated T8 LED tube works with both T8 and T12 fluorescent fixtures—simply remove the ballast and insert the tube. 5-year warranty.
Learn More

Quick Contact Sales—TEXT or CALL:

Rob — East Coast: 215.285.5693

Justin — West Coast: 858.229.1015

In stock

  • Click Quantity to Auto-Select
  • 4+ @ $17.90 ea
  • 10+ @ $16.90 ea (save  $1.00)
  • 20+ @ $15.90 ea (save  $2.00)
  • Shipped in packs of 4, 10 or more for shipping security. Buy in bulk (from $13.92/tube).
Can assort covers and colors. Quantity pricing will be reflected in the shopping cart.


Buy 16 or more and get free shipping (excludes AK & HI).


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LED Upgrade Kits for Existing Fluorescent Troffer Lights
The easiest and most economical way to give your offices, conference rooms, classrooms — any room with a drop-ceiling — a complete makeover by converting standard 4' x 2' hinged fluorescent troffers to energy-saving, maintenance-free LED technology



At just 18W, these glare-free, 4-foot DLC LED tube lights use 44% less energy than equivalent luminosity fluorescents and last 66% longer (50,000 hours instead of 30,000), which translates to lower power bills and less frequent lamp replacements. These tubes are DesignLights Consortium® (DLC) qualified and UL listed, qualifying them for rebates from local utilities.

  • 2000 lumens provide light so bright that many business are able to reduce the number of tubes they use, installing two in fixtures that hold four, for additional energy savings
  • For commercial installations, DLC-listed tubes qualify for utility rebates, and UL-listed (E468996) tubes comply with Underwriters Laboratories' safety standards.
  • Instant-on with no flickering or dimness
  • Silent operation—no ballast buzz 
  • 50,000-hour average operating life reduces the frequency of tube replacement
  • Choose a frosted lens for a conventional appearance or clear for a fashionable, high-tech look 
  • Fits existing T8 or T12 fixtures with tombstone sockets 
  • Easy installation—simply rewire your fixture to bypass the ballast and pop in the LED tube (Click for install instructions)
  • Electronic ballast fixtures require unshunted lampholders, see accessories above.
  • 5-year warranty


Light Output 1800LM (4000K), 2000LM (5000K)
Power Consumption 18W
Average Lamp Life 50,000 hours
Color Natural/Neutral White: 4000K, Cool White: 5000K
CRI 88 (4000K)
90 (5000K)
Base Type Bi-Pin
Reflector Beam Angle 150 °
Beam type Standard Tube
Cover Frosted, Clear
Tube Lengths 4'
Ballast Compatibility Any - Remove Ballast Before Installing Tube
Installation Method Click for install instructions
Working Environment Indoor
LED Type SMD3528
Number of LEDs 280
Input Voltage 90-277V
Qty in Package 1
Dimensions 47.71"x1.14"
Certification DLC, UL
DLC Model # 4000K, Frosted: 4RLXT8X018UD40F
4000K, Clear: 4RLXT8X018UD40C
5000K, Frosted: 4RLXT8X018UD50F
5000K, Clear: 4RLXT8X018UD50C
Warranty 5 Years


  • Instant on, glare-free
  • Flicker-free, silent—no ballast
  • Consume less energy (18 Watts vs. 32 Watts)
  • Emit less heat (3.4 BTUs per hour versus 30 BTUs)
  • No mercury or other hazardous materials
  • Approx. 8 year lifespan (6 hrs/day, 7 days/wk usage)
  • Durable aluminum and plastic construction
  • Fit any T8 and T12 fixtures
  • DLC/UL rebate qualified for commercial energy incentive rebate programs
  • UL (E468996), DLC listed

Color & Applications

Daylight-quality Natural White light makes products pop, shows true-to-life colors.

Commerical Applications: Showrooms • Apparel Stores • Bookstores • Office Supply and Stationary Stores • Offices • Hallways • Cafeterias • Waiting Rooms and more

Residential Applications: Kitchens • Bathrooms • Rec Rooms • Finished Basement Areas

Cool White light provides a bright, clean look and the most lumens/brightest possible light.  

Commercial Applications: Electronics & High-Tech Stores • Auto Parts Stores • Hardware Stores • Grocery and Convenience Stores • Hospitals • Schools • Labs and Research Facilities • Warehouses • Manufacturing Plants • Commerical Kitchens

Residential Applications: Garages • Basements • Workshops • Attics

Customer Reviews

Customer Reviews

Review by Kevin D. - Murrieta, CA

“Retrofitted my inexpensive shop light fixtures in my garage with the 48" T-8 bulbs. They’re cutting the power consumption by 50% - plus the quality of light is better than before!” (Posted on 11/30/2015)

Review by Bud Herod

I meant to write to you sooner, but being retired I seem to be too busy all the time. Anyway, here in Northern Illinois and Southern Wisconsin your LED tube lights are a definite hit ! ! I just received my order of eight T818W tubes for my garage so I have to get busy and start modifying my fixtures. My first order of four that got bought right out of my hands by the guys up in Wisconsin have them hooked so well that they set up their own account with you for their first order of 12 T8 18W for the aircraft paint room in their hangar and they have me busy modifying all their fixtures as well. Great product, fantastic amount of light, and the CW 5000K light really makes the sprayed parts pop. The old fluorescent tubes made everything look slightly yellow. Thanks again, and I am
(Posted on 3/27/2014)

Review by Robert J Walt

Just received the bulbs today and had just about all the ballasts removed from fixture. I want to thank you for the great shipping and they all arrived without any damage! SUPER

I also am very impressed with the lights my goodness, I had no idea the brightness and white light, glad I went with the frosted, very nice product at a reasonable cost.

Thanks for sending the diagram for the ballast removal. WENT VERY WELL!

Just wanted to let you know how much I enjoy the LED lights already.
(Posted on 3/18/2014)

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