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Keystone KT-LED21T8-48P2S-840-D /G2 4ft LED Sign Tube 4000K

SKU:
KT-LED21T8-48P2S-840-D /G2
Sold by the Case of:
9 units
To help ensure safe arrival of bulbs and to give you the lowest possible price, this item is only sold in case quantities. Price shown is per bulb. View full description
$47.21
Customer Reviews
Pack
9

Description

48" Sign Hero 360 Retrofit for T12HO and T8HO Fluorescent Lamps | Type B Ballast Bypass

4 ft. LED Sign Tube - 4000K - Double Sided Output and Rotatable R17d End Caps - 21W - 120V-220V-277V Input

Upgrade your commercial signage with the Keystone KT-LED21T8-48P2S-840-D /G2 4ft LED Sign Tube. Designed for superior energy efficiency and lasting performance, this 48" Sign Hero 360 Retrofit replaces T12HO and T8HO fluorescent lamps, providing a 4000K bright cool white color temperature. Ideal for both single-sided and double-sided signs, this retrofit LED tube ensures even lighting without hotspots and offers over 50% energy savings compared to traditional high-output fluorescent lamps.

Featuring a rotating R17d base and Type B ballast bypass, this Generation 2 LED sign tube installs easily using existing sockets, requiring no external drivers or power supplies. With a 360° beam spread and rotatable end caps, the Keystone Sign Hero LED provides an optimized light spread for commercial signs, making it the ideal solution for upgrading old fluorescent signage to energy-efficient LED lighting.

Key Features:

  • Patent Pending Design: Built for both single-sided and double-sided signs, ensuring even illumination across surfaces.
  • High Energy Efficiency: Saves over 50% more energy compared to HO fluorescent lamps, reducing operational costs.
  • Long Lifespan: Provides 50,000+ hours of operation, reducing the need for frequent replacements.
  • Easy Installation: Installs using existing sign sockets, with all necessary wiring done within the ballast raceway.
  • 120-277V Input: Compatible with a wide range of power inputs, perfect for commercial applications.
  • Rotating R17d Base: Offers flexibility with adjustable end caps for optimized light direction.
  • 360° Beam Spread: Double-sided design ensures an even distribution of light, avoiding dark spots in signage.
  • UL Classified: LED sign retrofit meets UL 48 and UL 879A standards for safety and performance.
  • Durable: Operates in extreme temperatures from -30ºC/-22ºF to 55ºC/131ºF, making it reliable in various climates.
  • No External Driver Needed: Simplifies installation by eliminating the need for an external power supply.

Benefits:

  • Energy Savings: Achieves over 50% more energy efficiency than traditional T12HO and T8HO fluorescent lamps, lowering utility costs.
  • Enhanced Durability: With a lifespan of over 50,000 hours, this LED sign tube reduces maintenance and replacement expenses.
  • Optimal Lighting for Signage: The 360° beam spread and rotatable base allow for even and effective illumination, ensuring clear and visible signage.
  • Hassle-Free Installation: Installs easily with the existing sockets, making it an ideal retrofit for both single- and double-sided signs.
  • Environmentally Friendly: LED technology reduces energy consumption and extends lamp life, helping to create more sustainable signage solutions.

Product Specifications:

  • Wattage: 21W
  • Length: 4ft (48 inches)
  • Color Temperature: 4000K (cool white)
  • Input Voltage: 120–277V
  • Lifespan: 50,000+ hours
  • Base Type: Rotating R17d
  • Beam Spread: 360°
  • Temperature Rating: Operating from -30ºC/-22ºF to 55ºC/131ºF
  • UL Classification: LED sign retrofit, evaluated to UL 48 and UL 879A standards
  • Mounting: Optimized spacing of 6" from the face and 12" on center

Downloads

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Disclaimers

*This product typically ships in 2 to 3 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 5 business days to ship.

 

Extra Information

Brand:
Keystone Technologies
UPC:
890949017524
Model #:
KT-LED21T8-48P2S-840-D /G2
EZ Code:
FFS-69
Wattage:
21W
Color Temperature:
4000K
Socket Type:
R17d
Efficacy:
119 lm/W
CRI:
>80
Length (in.):
48.00
Size:
4ft
Total Lumens:
2,500
Pack:
9
Price Shown:
Per Bulb