Topaz Lighting L2T8B840 LED T8...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$11.44
Topaz Lighting L2T8B840 LED T8 Ballast Bypass Lamp, Clear Polycarbonate, 5000K

Topaz Lighting L2T8B840 LED T8 Ballast Bypass Lamp, Clear Polycarbonate, 5000K

(No reviews yet) Write a Review

Model: L2T8B/840/10C/SE-75

In Stock (leaves warehouse same day if ordered before 3pm ET)

$11.44
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Topaz Lighting L2T8B840 LED T8 Ballast Bypass Lamp, Clear Polycarbonate, 5000K

The Topaz Lighting L2T8B840 LED T8 Ballast Bypass Lamp is engineered for seamless T8 and T12 fluorescent upgrades, delivering energy-efficient, long-lasting illumination without the need for an existing ballast. Available in 24" and 48" lengths to match a range of fixture configurations, each tube is constructed with durable clear polycarbonate and features an internal power supply and heatsink, operating on 120-277VAC for broad compatibility across commercial and industrial applications. Every lamp in this family produces a crisp 5000K cool white color temperature with a wide 240° beam angle for glare-free, evenly diffused light distribution, and is rated for up to 50,000 hours of operation as a reliable, low-maintenance replacement for traditional fluorescent sources.

Key Features

  • Available Lengths: Offered in 24" and 48" tube lengths, making this family a flexible match for a wide range of T8 and T12 fixture retrofits.
  • Durable Construction: Clear polycarbonate housing provides impact resistance and long-term durability in demanding commercial and industrial environments.
  • Ballast Bypass Design: An internal power supply eliminates ballast dependency, reducing maintenance costs and improving system reliability.
  • Wide Voltage Range: Operates on 120-277VAC, making it compatible with a broad range of commercial and industrial electrical systems.
  • Color Temperature: 5000K cool white output delivers crisp, neutral-to-cool illumination for improved visibility and light distribution.
  • Extended Beam Angle: 240° beam angle ensures glare-free, evenly diffused illumination with consistent coverage superior to traditional fluorescent sources.
  • Long Rated Life: Rated for up to 50,000 hours, significantly reducing lamp replacement frequency and associated labor costs.
  • DLC Approved: Select models carry DesignLights Consortium (DLC) approval, supporting energy rebate eligibility.

Certifications & Compliance

  • DLC Approved (select models)
  • Suitable for T8 and T12 Ballast Bypass Applications
  • 120-277VAC Rated

Technical Specifications

  • Product Type: LED Lamp
  • Product Wattage: 18W

Typical Applications

  • T8 and T12 Fluorescent Lamp Retrofits and Upgrades
  • Commercial Office and Retail Lighting
  • Industrial Warehouses and Manufacturing Facilities
  • Parking Garages and Storage Areas
  • Schools, Hospitals, and Institutional Buildings
  • New Construction and Renovation Projects

Why Topaz Lighting?

Topaz Lighting's L2T8B840 LED Linear T8 Ballast Bypass family is built with clear polycarbonate construction and an integrated internal power supply and heatsink, ensuring consistent performance and durability over a rated 50,000-hour lifespan across both 24" and 48" lengths. With DLC-approved models available and a wide 120-277VAC operating range, these lamps are designed to meet the demands of professional electrical installations while supporting energy efficiency goals. Trust Topaz Lighting for code-compliant, high-performance LED solutions that simplify fluorescent-to-LED transitions.

Product Specs

Product Type:
LED Lamp
Product Wattage:
18W
Light Temperature:
5000K
Listing:
DLC Approved (select models)
Department:
Electrical
Product Group:
Lighting
Product Subgroup:
LED Lamps & Bulbs
Product Material:
Polycarbonate
Product Color:
Clear
Voltage Rating:
120-277VAC
Product Size:
24" - 48"

Topaz Lighting L2T8B/840/10C/SE-75 – Frequently Asked Questions

1) Do I have to remove the ballast to install a Topaz L2T8B840 LED T8 tube?
Yes. The Topaz L2T8B840 is a ballast bypass (direct wire) lamp with its own internal power supply, so the existing fluorescent ballast has to come out and line voltage goes straight to the sockets. It runs on 120-277VAC, which covers most commercial and industrial branch circuits, so the same lamp works whether the fixture is fed 120V or 277V.
2) Will a Topaz ballast bypass LED tube work in an old T12 fixture?
It will. Because the lamp is direct wired and does not use the fixture's ballast, the T12 magnetic ballast is simply removed and the sockets are rewired to line voltage. Topaz lists the L2T8B840 family for both T8 and T12 fluorescent retrofits. What matters is the physical tube length and the sockets, not the old ballast type.
3) What lengths does the Topaz L2T8B840 LED T8 lamp come in?
Two: a 24 inch tube (MPN L2T8B/840/10C/SE-75) and a 48 inch tube (MPN L4T8B/850/18C/SE-75). Pick by the fixture's existing fluorescent lamp length, since the pins have to land in the same sockets. Four foot troffers and strips take the 48 inch; two foot fixtures and undercabinet strips take the 24 inch.
4) Can I mix these with the fluorescent tubes still in my other fixtures?
Not in the same fixture. Once a fixture is bypassed and the ballast is removed, every lamp in that fixture has to be a direct wire LED tube; a fluorescent in a bypassed socket will not light and creates a hazard. Across separate fixtures it is fine electrically, but a 5000K LED next to an older fluorescent will look visibly different in color, so plan on doing a room or a bay at a time rather than lamp by lamp.
5) Is 5000K too cool for an office, or should I use these in a warehouse?
5000K is a crisp cool white, and it is the usual choice for warehouses, manufacturing floors, parking garages, storage rooms, and back of house areas where visibility matters more than warmth. Plenty of offices, schools, and healthcare facilities standardize on it too. If your building is already running 3500K or 4000K tubes, mixing in 5000K on a few fixtures will read noticeably bluer in the same room.
6) Do Topaz L2T8B840 LED tubes qualify for a utility rebate?
Select models in the L2T8B840 family carry DesignLights Consortium (DLC) approval, which is what most utility programs require for prescriptive lamp rebates. DLC status is model specific, so confirm the exact MPN you are ordering (L2T8B/840/10C/SE-75 for 24 inch, L4T8B/850/18C/SE-75 for 48 inch) against your utility's qualified products list before you file the paperwork.
7) Are these LED tubes glass or plastic? I need something that won't shatter in a shop.
Clear polycarbonate, not glass. That is the reason to spec them in warehouses, manufacturing areas, parking garages, and gymnasium type spaces where a dropped tube or a forklift bump would take out a glass fluorescent. The clear lens also means the LED strip is visible through the tube rather than frosted over.
8) Can I dim Topaz L2T8B840 ballast bypass tubes on an existing 0-10V or wall dimmer?
No. The L2T8B840 is a line voltage ballast bypass lamp with an integral driver, wired for straight 120-277VAC operation. There is no dimming control input, so putting it on a dimmer circuit is not a valid install. For dimmable spaces, spec an LED troffer or strip fixture with a 0-10V driver rather than a retrofit tube.
9) How long do these Topaz LED tubes last before they need replacing?
Rated up to 50,000 hours. On a 12 hour a day, 7 day schedule that is roughly 11 years of runtime, which is why facilities groups use rated life to justify the labor side of a retrofit as much as the energy side. In a garage or corridor running 24/7 you are closer to 5 to 6 years.
How fast can I get the Topaz Lighting L2T8B/840/10C/SE-75 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 L2T8B/840/10C/SE-75 come with a warranty?
Absolutely. The Topaz Lighting L2T8B/840/10C/SE-75 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 L2T8B/840/10C/SE-75?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Topaz Lighting L2T8B/840/10C/SE-75 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!