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Sold in Quantities of:
1 unit(s)
ALB Price: $42.35 per item
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 Quick Quote

F48T12CW/HO LED Replacement 120-277V 21W - 46" actual length - 48" nominal length - 4000K Daylight- DirectDrive IP65 outdoor rated replacement. Operates on 110-277V -plastic and aluminum construction. Rewiring of existing fixture is necessary. Ballast Bypass LED Tube - Type B - Follow MFG Instructions. Double ended live ends. nstalls using existing sockets in the sign; all necessary wiring can be done within the sign raceway, which is great many other LED solutions require the use of a driver or ballast. The Sign Hero 360 uses R17d bases - each side of the tube can be turned 360 degrees so it can be used in single or double sided signs. Lumen output is 1300 lumens per side. Easy to install - check out the video below!

Get the Best Value on Fluorescent LED KT-LED21T8-48P2S-840-D Replacement Lamps for F48T12CW/HO

Whether you’re a facility manager, contractor or business owner, using high-quality LED replacement lamp is important. After all, the details matter when it comes to providing high quality long lasting light! This LED SignHero Bulb will get the job done right so you can focus on other things. Count on Atlanta Light Bulbs for premium lights at affordable prices.

See the Difference

Upgrading your fluorescent lamps to LED SignHero bulbs from is the way to go. Here are some of the specs and features:

  • 21 watts
  • Double Sided LED Strips for Optimal Light Output
  • Ballast Bypass Operation
  • 120-277V Rated
  • R17D - Recessed Double Contact Base with Rotatable End Caps
  • 46 Inch Length
  • 50,000 Hour Life
  • T8 Shape Tube
  • Long Life
  • 5 year warranty

Outstanding Customer Service

We understand that shopping for LED sign lighting products can be a daunting experience, especially if you’re not already familiar with the industry. If you’re not sure if the KT-LED21T8-48P2S-840-D SignHero lamp is right for your needs, or if you have any questions at all, our experts are always happy to assist you.

Shop Online Today

With over 30+ years of experience as industry leaders, we know how to keep our customers happy. Need your lights fast? We ship all in stock orders received by 4pm EST the same day. To speak with someone about your order, call 1-888-988-2852 or send us a message online for a prompt response. Outfit your home and business with the best lights when you shop at Atlanta Light Bulbs today.

This Item Replaces

This product is a direct replacement for the following items:


Minimum Qty 1
Brand Keystone Technologies
Technology LED
Actual Wattage 21
Equivalent Wattage 60
Voltage 120-277
Lumen Output 2600
Lumens Per Watt 123
Color Temperature (Kelvin) 4000
Color Rendering Index 83
Light Color
Bulb Shape T8
Base Type Recessed Double Contact (R17D)
Burn Position Universal
Beam Degrees 360
Ansi Code
Ballast Factor Normal
Ballast Start Type
Useful Life Hours 50000
Dimmable No
Outdoor Rated No
DLC Certified No
LDL Certified No
LM79 Certified No
LM80 Certified No
TM21 Certified No
Energy Star Rated No
Manufacturer Code
Manufacturers Notes
Diameter (Inch) 1
Dimensions (Inch) 46(Length) • 1.00(Width) • (Height)


Warranty: 5 Year Warranty


Lead Time:
Ordered on Demand

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