The Norman Lamps LED-T828-40-5K is a 28W LED T8 Type B tube designed as a direct replacement for 32W T8 fluorescent tubes in 48-inch (4-foot) fixtures. Operating on a wide input voltage range of 120V to 277V, this LED T8 tube is suited for both residential and commercial installations, including offices, retail spaces, warehouses, schools, and industrial facilities. The broad voltage compatibility makes it equally at home in standard 120V residential circuits and commercial 277V systems.

As a Type B ballast-bypass LED T8 tube, this lamp operates on direct voltage input with the existing fluorescent ballast removed and bypassed. Input voltage is applied to both ends of the tube at the designated live and neutral pins, using a double-ended AC power input configuration. This direct-wire approach eliminates ballast dependency, removes a common failure point from the fixture circuit, and delivers consistent, flicker-free illumination. Rewiring must be performed by a qualified electrician following applicable electrical codes.

The LED-T828-40-5K produces 4000 lumens at a 5000K pure white color temperature, delivering a crisp, daylight-quality light output well suited to task-intensive environments where visual clarity and accurate color rendering are essential. With a wide 300-degree viewing angle, light is distributed broadly to minimize shadows and dark spots across large surface areas. The tube measures 48 inches in length and 1 inch in diameter, fitting standard G13 bi-pin lamp holders that accept conventional 4-foot T8 fluorescent tubes.

This LED T8 tube is non-dimmable and operates at a rated average life of 35,000 hours, significantly reducing the frequency of relamping compared to the fluorescent tubes it replaces. The lamp is UL Listed, confirming it has been independently evaluated and meets recognized safety standards for electrical products. Each unit is sold individually, with full case quantities of 25 available.

The Bypass™ T8 is a cost-effective retrofit LED tube that outperforms all other T8 LED technology. HIGH Power factor with 4,000 Lumen output G1 120-277-28/T8 4FT DBP G13Glass UL E352052

• 28W LED T8 Type B ballast-bypass tube delivers 4000lm at 5000K pure white — replaces 32W T8 fluorescent tubes in standard 48-inch fixtures
• Direct-wire double-ended AC input (120V–277V) bypasses the existing ballast entirely, eliminating a common fixture failure point
• G13 bi-pin base fits standard 4-foot T8 fluorescent fixture tombstones; 1-inch tube diameter matches existing lamp slots
• Wide 300-degree viewing angle provides broad, even light distribution suited for offices, warehouses, retail, and industrial spaces
• Rated 35,000 life hours — non-dimmable; UL Listed for safety compliance
• Sold individually; order 25 for a full case