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18W T8 Hybrid LED Tube - 2300 Lumens - 4ft - Single End/Dual End - Ballast Compatible/Ballast Bypass Type A/B - 32W Equivalent - 5000K/4000K

Part Number: T8U4-xK18-AFN

Product Details

  • Versatile retrofit capabilities
  • Plug and play Type A - dual ended
  • Bypass ballast for Type B - single or dual ended
  • Replaces 4' 32-watt T8 fluorescent tubes
  • 120–277 VAC
  • DLC Standard, 5 year warranty
Select LED Color:
Cool 5000K
Natural 4000K
Select Pack:
In Stock
Starting at $6.95 ea. (per Bulb)
Volume price as low as $6.26
Orders Ship Today!  14 Hours and 46 Minutes remaining
  • Select options to see various notes.
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Update nearly any 4’ fluorescent fixture with the hybrid design of T8U4 series T8 LED Tube. Simply plug-and-play with Type A compatibility, or bypass the ballast for Type B luminaires. Conveniently replace 32-watt fluorescent tubes according to the existing system, with nearly half the wattage. The frosted glass lens distributes diffused, efficient task light for offices, schools, or any other commercial setting.

  • Single or dual ended, G13 bi-pin base
  • May not be compatible with all ballasts
  • Type A runs 20.5-watts, Type B runs 18-watts
  • Available in 5000K, 4000K
  • 120-277 VAC input
  • 50000 hours L70 lifespan
  • DLC Standard, UL Listed, UL Classified
  • 5 year warranty

Warranties & Certifications
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
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
UL Listed
Underwriters Laboratories (UL) LLC is an independent testing agency that works to verify product safety and quality. A UL-Listed label means that product samples have been tested by UL and that the product meets their Standards for Safety requirements.
UL Classified
Underwriters Laboratories (UL) LLC is an independent testing agency that works to verify product safety and quality. UL tests specific properties of product samples to ensure that they adhere to applicable UL requirements, Standards for Safety, and other national and international organization's standards.
  • Factory Lighting
  • Hospital Lighting
  • School Lighting
  • Office LED Lighting
  • Commercial Complexes
  • Industrial Facilities


Swipe left to see additional specifications
Part NOLED ColorLED QuantityLED Wattage
Total Power Consumption
Intensity per LEDMilliwatt
CCT / Wavelength
Price Ea.Product WeightLumen Per Dollar
T8U4-40K18-AFNNatural 4000K-----4000 $6.95-330.94 lumen/dollar
T8U4-50K18-AFNCool 5000K-----5000 $6.95-330.94 lumen/dollar
T8U4-40K18-AFN-4PKNatural 4000K-----4000 $27.60-333.33 lumen/dollar
T8U4-40K18-AFN-25PKNatural 4000K-----4000 $169.95-338.33 lumen/dollar
T8U4-40K18-AFN-50PKNatural 4000K-----4000 $329.95-348.54 lumen/dollar
T8U4-50K18-AFN-4PKCool 5000K-----5000 $27.60-333.33 lumen/dollar
T8U4-50K18-AFN-25PKCool 5000K-----5000 $169.95-338.33 lumen/dollar
T8U4-50K18-AFN-50PKCool 5000K-----5000 $329.95-348.54 lumen/dollar


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Michael schlanger
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Wished I would have known that when your specs said “ ballast compatible “ you only meant electronic and not electromagnetic
Thanks for your time

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