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Sylvania 21879 FBO31/841 Octron U-Shaped Bulb
Sylvania Sylvania

Sylvania 21879 FBO31/841 Octron U-Shaped Bulb

Illuminate your space with the Sylvania Octron U-Shaped Fluorescent Bulb. This 31-watt T8 lamp delivers a bright, cool white light at 4100K, perfect for general residential lighting. It features a standard G13 Medium 2-Pin Base for easy installation and an impressive 20,000-hour average rated life, minimizing replacements. Producing 2725 lumens with an 82 CRI, this bulb ensures clear and vibrant visibility. Designed for reliability and efficiency, it's a practical choice for various home lighting needs.

$14.75

Track Price
In Stock at Dynamic Lamps

Owner Satisfaction

4.0

/ 5

 

Category Rank

70

/ 77

#70 in Fluorescent Tubes

Price vs Category Average

-76%

Below average

Wattage

31

/ Watts

 

Who it's for

  • High Energy Efficiency
  • Compact Design for Small Fixtures
  • Excellent Color Rendering (800 Series)

Who should skip it

  • Limited Fixture Compatibility
  • Shorter Lifespan than LED Alternatives
  • Mercury Content and Disposal

Key Specs

Wattage

31 Watts

Color Temperature

4100K

Luminous Flux

2725 Lumens

CRI

82

Rated Life

20000 Hours Average Life

Base Type

G13 Medium 2-Pin Base

Bulb Shape/Type

T8 U-Shaped

Maximum Overall Length

22.6 in (574 mm)

Features

  • Bright 2725 lumens output
  • Long-lasting 20,000-hour life
  • Crisp 4100K Cool White light
  • Standard G13 2-Pin Base
  • T8 bulb shape fits common fixtures
  • High 82 CRI for accurate colors
  • Ideal for residential lighting

What customers say

This U shaped bulb is highly valued as a quality replacement for specialized fixtures, delivering excellent bright illumination with its 4100K cool white light. Users appreciate the immediate, flicker free performance that revitalizes task areas like offices and kitchens. The core issues revolve around reliability and shipping. Many customers report frustrating premature failures, expecting longer operational life from this technology. Furthermore, the bulb's fragile design frequently results in damage during transit, leading to dissatisfaction with the delivery experience. When successfully installed, the product offers great value, but logistical fragility remains a significant concern.

Hayley

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Sylvania 21879 FBO31/841 Octron U-Shaped Bulb

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