Sylvania
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Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb
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Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb
Illuminate your space with Sylvania's Durable 40 Watt Cool White Fluorescent Light Bulb, offering exceptional brightness and longevity.
Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb
Item #: 95208522

Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb

Item #: 95208522

MWK 90741

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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Order now and get it around Sunday, July 26
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Illuminate your space with Sylvania's Durable 40 Watt Cool White Fluorescent Light Bulb, offering exceptional brightness and longevity.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Energy Efficient
These fluorescent tube bulbs offer excellent energy savings, reducing electricity costs while providing bright illumination, making them an economical choice for both residential and commercial spaces.
Long Lifespan
Designed to last longer than traditional bulbs, the Sylvania fluorescent tubes provide consistent lighting over extended use, minimizing replacements and maintenance efforts, ensuring reliability.
Bright Illumination
With a high lumen output, these tubes deliver powerful brightness, ideal for workspaces and environments requiring good visibility, enhancing productivity and comfort.

Product Details

Shop Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb online at a best price in Malawi. B0CMGQYLPD
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • Commercial Spaces

    Ideal for businesses needing bright, efficient lighting in warehouses, garages, or retail environments to enhance visibility.

  • Grocery Stores

    Perfect for illuminating food displays, ensuring products are vibrant and appealing to customers for better sales.

  • Workshops

    Excellent choice for workshops requiring bright, consistent lighting for detailed tasks or projects, improving productivity.

Not Suitable For
  • Home Use

    Not suitable for home environments where softer lighting or ambiance is preferred over harsh fluorescent brightness.

  • Industrial Applications

    May not meet the robust demands of industrial setups, needing specialized lighting alternatives for better performance.

  • Dimly Lit Areas

    Inadequate for areas requiring low light levels, as these bulbs provide strong illumination rather than subtle lighting.

Product Description

Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the dimensions of the Sylvania 21371 F40CWX T12 fluorescent tube?

    Answer: The Sylvania 21371 F40CWX T12 fluorescent tube measures 48 inches in length and has a diameter of 1.5 inches. This standard T12 size is designed to fit most regular fluorescent fixtures, making it a versatile choice for both residential and commercial lighting. Its lengthy design allows for wide illumination, suitable for larger spaces such as garages, warehouses, and offices, ensuring optimal brightness throughout the designated area.
  • Question: What is the color temperature of the Sylvania 21371 F40CWX bulb?

    Answer: The Sylvania 21371 F40CWX bulb has a color temperature of 4100K, producing a natural white light that enhances color accuracy and visibility. This balanced light is ideal for environments where tasks require clarity, such as offices, schools, or workshops. The pleasant color rendering not only increases productivity but also creates a comfortable atmosphere for working or studying.
  • Question: What type of fixtures can the Sylvania F40CWX T12 bulb be used in?

    Answer: The Sylvania F40CWX T12 bulb is designed to fit standard fluorescent fixtures that accommodate T12 bulbs. It can be utilized in various settings including commercial spaces, retail environments, and garages. Its compatibility with a wide range of fixtures allows it to be a practical choice for replacing older fluorescent lighting, helping to maintain efficiency and brightness in any area.
  • Question: What is the wattage of the Sylvania 21371 F40CWX bulb?

    Answer: The Sylvania 21371 F40CWX bulb operates at 40 watts, providing a robust solution for lighting needs. This wattage is standard for T12 fluorescent tubes and delivers high lumens output, ensuring spaces are well illuminated. This wattage is particularly effective in larger spaces like aisles of a warehouse or expansive office cubicles, where adequate lighting is essential for safety and functionality.
  • Question: Is the Sylvania 21371 F40CWX fluorescent tube dimmable?

    Answer: No, the Sylvania 21371 F40CWX fluorescent tube is not designed to be dimmable. Fluorescent bulbs typically require specific electronic ballasts for dimming, which the F40CWX does not support. If you require adjustable light levels, consider a dedicated dimmable LED alternative for enhanced functionality in areas such as living rooms or dining areas where ambiance is important.
  • Question: Does the Sylvania F40CWX contain mercury?

    Answer: Yes, the Sylvania F40CWX tube contains a small amount of mercury, which is typical for fluorescent lighting technology. Mercury is necessary for the bulb's operation but requires responsible disposal practices after use. When the bulb reaches the end of its lifespan, it's crucial to follow local disposal regulations to ensure environmental safety, such as returning it to a recycling facility specialized in hazardous materials.
  • Question: What is the lifespan of the Sylvania 21371 F40CWX tube?

    Answer: The lifespan of the Sylvania 21371 F40CWX tube is approximately 20,000 hours under standard usage conditions. This longevity means fewer replacements and less maintenance, providing significant value for both residential and commercial applications. Its extended life is particularly beneficial in hard-to-reach fixtures, such as those mounted on high ceilings in warehouses or retail spaces.
  • Question: What are the benefits of using fluorescent tube lights like the Sylvania F40CWX?

    Answer: Fluorescent tube lights, including the Sylvania F40CWX, offer several advantages such as high energy efficiency, a long lifespan, and consistent light output. They are particularly effective for general lighting in large areas due to their wide distribution of light. This makes them an excellent choice in offices, schools, and retail spaces, where sustained, bright lighting is essential for productivity and safety.
  • Question: Can I use the Sylvania F40CWX bulb outdoors?

    Answer: The Sylvania F40CWX bulb is primarily designed for indoor use. While it can technically function outdoors, it is not rated for exposure to moisture or extreme conditions. For outdoor fixtures, consider alternative lighting options specifically designed for external use, such as weather-resistant LED or high-intensity discharge (HID) lamps, which can provide reliable performance in varied environmental conditions.
  • Question: Where can I buy Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb in Malawi?

    Answer: You can purchase the Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb on Ubuy. They offer a wide selection of lighting solutions, making it convenient to find the right bulbs for your needs. Simply visit the Ubuy website and search for the product to explore options available in Malawi.

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“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
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“Accurate delivery timing given”

16 June 2026 · via Trustpilot
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“Not madly expensive like I thought, and much quicker than promised.”

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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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MWK 90741

Order now and get it around Sunday, July 26

QTY:

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Features & Benefits

  • 40 watt power provides efficient lighting.
  • Deluxe Cool White color temperature at 4,100K.
  • Average lifetime of up to 20,000 hours.
  • High lumen output of 2,150 for bright illumination.
  • High CRI of 87 ensures true color representation.
  • Pack of 2 for convenient replacement and savings.

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