Keystone KT-LED21T8-48P2S-865-D LED Sign Tube

Keystone Technologies

SKU:
KT-LED21T8-48P2S-865-D

For Reference Only. No longer available for sale.

For Reference Only. No longer available for sale.

Customer Reviews

Description

120-277V Input Double-Sided LED Sign Tube | Daylight White | 124 lm/W 

Upgrade your signage to energy-efficient LED

Shine brighter, save more:

  • Replaces conventional T12HO & T8HO fluorescent tubes for eco-friendly lighting.
  • Delivers an impressive 2,600 lumens with exceptional 124 lm/W efficacy, outperforming fluorescent alternatives.
  • Lasts 50,000+ hours, reducing frequent replacements and maintenance costs.

Double-sided illumination:

  • Ideal for single or double-sided signs.
  • 360° beam spread ensures even light distribution without hot spots.
  • Rotatable end caps for flexible positioning.

Easy installation:

  • Direct ballast bypass, no external driver required.
  • Fits existing T8 sockets, simplifying the upgrade process.
  • Durable polycarbonate construction built to withstand outdoor elements.

Perfect for:

  • Marquees & box signs
  • Backlit displays
  • Roadway signs
  • Commercial & industrial signage

Specifications for the Keystone KT-LED21T8-48P2S-865-D:

Power and Lumens

  • Power Consumption: 21 Watts
  • Lumens Output: 2,600 Lumens
  • Efficacy: 123 Lumens per Watt

Color Temperature and CRI

  • Color Temperature: 6500 Kelvin

Physical Dimensions

  • Length: 48 Inches
  • Diameter: 1 Inch
  • Base: R17d Double Ended

Electrical Specifications

  • Input Voltage: 120-277 Volts AC
  • Dimmable: No
  • Ballast Bypass: Yes
  • Warranty: 5 Years

Lifespan

  • Rated Lifespan: 50,000 Hours

Other Features

  • 360° Beam Angle
  • Rotatable End Caps
  • Suitable for Single or Double Sided Signs
  • UL Listed for Sign Retrofit
  • No External Driver Required
  • RoHS Compliant

Downloads

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Disclaimers

*This product typically ships in 1 to 2 business days. Larger quantities may take longer than stated lead-time.  All lead-times are estimates and you will be notified by email if it will take longer than 3 business days to ship.
 

Extra Information

Brand:
Keystone Technologies
UPC:
890949017395
Length:
4’
CRI:
>80
Wattage:
21W
Color Temperature:
6500K
Socket Type:
R17d
Efficacy:
124 lm/W
Total Lumens:
2,600