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Topaz Lighting L2T8B840 LED T8 Ballast Bypass Lamp, Clear Polycarbonate, 5000K
Model: TOP-L2T8B840
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Topaz Lighting Extended Life Linear T8 Pre-Heat Fluorescent Lamp, ECO 4100K
Topaz Lighting's Extended Life Linear T8 Pre-Heat Fluorescent Lamp delivers a crisp, neutral 4100K color temperature suited for a wide range of commercial and residential lighting applications. Designed as an ECO-conscious solution, this T8 lamp is engineered to visibly reduce energy costs while maintaining consistent, high-quality light output. Available in a convenient 25-pack carton, it is an ideal choice for facilities requiring reliable, long-lasting fluorescent lighting across standard T8 pre-heat fixtures.
Key Features
- Lamp Type: Linear T8 fluorescent lamp in a pre-heat configuration, compatible with standard T8 pre-heat ballasts and fixtures.
- Color Temperature: 4100K neutral white light output, providing a clean, bright appearance ideal for offices, retail, and commercial spaces.
- Extended Life Design: Built for extended service life, reducing lamp replacement frequency and lowering maintenance costs over time.
- ECO Series: Part of Topaz Lighting's ECO line, engineered to help visibly reduce energy consumption compared to standard fluorescent alternatives.
- Color Temperature Range: Topaz T8 lamps are available in color temperatures from 2700K to 6500K, spanning warm white to daylight spectrums to suit diverse application needs.
- Convenient Packaging: Supplied in a 25-lamp pack (1/25-PK), providing cost-effective bulk stocking for commercial and institutional facilities.
Technical Specifications
- list_batch: TOPAZ-20260727
Typical Applications
- Commercial Office and Retail Lighting Installations
- Institutional and Educational Facility Lighting
- Industrial and Warehouse Fluorescent Lighting Systems
- Renovation and Retrofit of Existing T8 Pre-Heat Fixture Systems
- New Construction Fluorescent Lighting Projects
- Facilities Requiring Bulk Lamp Stocking and Scheduled Maintenance Programs
Why Topaz Lighting?
Topaz Lighting's T8 ECO lamp line is purpose-built to deliver reliable, energy-conscious performance across a broad spectrum of color temperatures from 2700K to 6500K. The Extended Life construction minimizes replacement cycles, supporting lower total cost of ownership for professional electrical contractors and facility managers. Topaz Lighting's commitment to quality and energy efficiency makes these lamps a dependable choice for code-compliant, professional-grade fluorescent lighting installations.
Manufacturer Resources
Topaz Electrical Fittings & Supplies Catalog
Product Specs
- Product Type:
- Fluorescent Tube
- Light Temperature:
- 4100K
- Listing:
- ECO Series
- Department:
- Electrical
- Product Group:
- Lighting
- Product Subgroup:
- Lamps & Bulbs
Topaz Lighting FO17/841-39 – Frequently Asked Questions
1) Is the Topaz FO17/841-39 a fluorescent tube or an LED tube?
It's an actual linear T8 fluorescent lamp, not an LED retrofit tube. The FO17/841-39 runs in a pre-heat configuration on standard T8 pre-heat ballasts and fixtures, so it needs the existing ballast in place to operate. If your fixtures have been ballast-bypassed for LED tubes, this lamp is not the part you want.
2) What color of light does the Topaz 4100K T8 lamp put out, and will it match my existing tubes?
4100K, a neutral white that reads clean and bright rather than warm or blue. It matches other 4100K lamps (often labeled cool white or neutral white on office and retail fixtures). If your building is running 3000K or 3500K tubes, mixing in 4100K will show a visible color shift down a row of fixtures, so relamp a whole area at a time. Topaz T8 lamps run from 2700K to 6500K if you need to match something else.
3) Can I use this Topaz T8 lamp in an instant-start or programmed-start fixture?
This lamp is specified for pre-heat T8 ballasts and fixtures. Pre-heat circuits warm the cathodes before striking the arc, and lamp ends are built for that starting method. Check the label on your ballast before ordering a case of 25; if it isn't a pre-heat T8 ballast, specify a lamp matched to that starting type instead.
4) How many lamps come in a carton of the Topaz ECO T8?
They ship 25 lamps to a carton (1/25-PK). That's the standard buy for facilities on a scheduled relamp program, where you want enough on the shelf to do a full floor or wing in one pass rather than chasing tubes one at a time.
5) What is the difference between the Topaz ECO T8 lamp and a standard T8 fluorescent?
Two things. The ECO designation means it's built to draw less energy than a standard fluorescent alternative, and the Extended Life construction is meant to stretch the interval between replacements. For a property manager or MRO buyer, the payoff is fewer ladder trips and lower labor cost per fixture over the life of the installation, not a change in how the lamp mounts or wires.
6) What part number do I order for the Topaz 4100K extended life T8?
Order Topaz Lighting FO17/841-39. The 841 in the number is the shorthand for the light quality: 4100K color temperature. That's the number to give a distributor or put on a submittal so you get the neutral white version rather than a 2700K or 6500K lamp from the same family.
7) Is 4100K the right color temperature for an office or classroom?
Yes for most commercial work. 4100K is neutral white, bright enough to keep task areas legible without the blue cast of 5000K or 6500K daylight lamps, and it's the long-standing default in offices, retail floors, schools, and warehouse aisles. For hospitality or residential spaces where a warmer look is wanted, go down the Topaz T8 range toward 2700K or 3000K instead.
How fast can I get the Topaz Lighting FO17/841-39 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Topaz Lighting FO17/841-39 come with a warranty?
Absolutely. The Topaz Lighting FO17/841-39 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Topaz Lighting FO17/841-39?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Topaz Lighting FO17/841-39 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
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Our team is always ready to help you choose the right product for your project.