Keystone 31W 72" Color Select Double-Sided T8 LED Sign Bulb, Ballast Bypass | KT-LED31T8-72P2SO-8CSK-DX2 | Bulbs.com

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LED Linear Tubes | LED Sign/Indicator Light Bulbs

Keystone 31W 72" Color Select Double-Sided T8 LED Sign Bulb, Ballast Bypass

SKU: KT-LED31T8-72P2SO-8CSK-DX2 | Ordering Code: KT-LED31T8-72P2SO-8CSK-DX2  | UPC: 843654163482

Keystone KT-LED31T8-72P2SO-8CSK-DX2 31W 72" Color Select Double-Sided T8 LED Sign Bulb, Ballast Bypass
Keystone KT-LED31T8-72P2SO-8CSK-DX2 31W 72" Color Select Double-Sided T8 LED Sign Bulb, Ballast BypassKeystone KT-LED31T8-72P2SO-8CSK-DX2 31W 72" Color Select Double-Sided T8 LED Sign Bulb, Ballast Bypass
  • Color
    Selectable
Prices correct at 4:21 AM, 2/17/2026 and are subject to change
$91.99each
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Options

Length (in)
30 36 42 48 60 72
Brightness (Lumens)
2000 4000

Product Highlights

  • Estimated life of 45.7 years based on 3 hours use per day
  • No lead or mercury means easy and environmentally safe disposal
  • Adjustable color
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Subtotal: $368.94

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Product Description–

Keystone 31W 72" Color Select Double-Sided T8 LED Sign Bulb, Ballast Bypass

  • Keystone color select technology 4000K/5000K/6500K
  • Double-sided illumination
  • Rotatable end caps
  • Optical lens over individual LEDs for optimal light spreadwithin the sign
  • 360 degree beam spread
  • Over 50% more efficient than HO fluorescent lamps
  • Installs using existing sockets in the sign, all necessary wiring can be done within ballast raceway
  • No external driver or power supply needed

Full Specs–

Brand

Keystone

Product Line

Sign Hero

Energy Used

31 Watts

Volts

120-277

Base

R17d

Wiring

Single or Double Ended

Bulb Shape

T-8

Bulb Color

Cool White/Bright White/Daylight White

CRI

80

Color Temperature (Kelvin)

4000/5000/6500

Lowest Color Temperature (Kelvin)

4000

Highest Color Temperature (Kelvin)

6500

Brightness (Lumens)

4000

Bulb Finish

Clear

Bulb Technology

LED

Average Rated Life (hr)

50000

Operating Temperature (°F)

-22 to 131

Beam Angle (°)

360/360

Bulb Power Type

Ballast Bypass

Length (in)

72

Diameter (in)

1.1

Nominal Width (ft)

6

Manufacturer Warranty

5 year limited

Damp Location

Yes

Rated for Fully Enclosed Fixtures

Yes

Color Selectable

Yes
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