The Norman Lamps LED-T828-40-4K is a 28W LED T8 Type B tube designed for direct ballast bypass installation in standard 48-inch (4-foot) fluorescent fixtures. Operating on a wide voltage range of 120V to 277V, this LED T8 tube delivers 4,000 lumens of cool white light at 4000K, providing bright, neutral illumination well suited to commercial and industrial environments including offices, schools, retail spaces, warehouses, and parking garages.

As a Type B (direct input) LED T8 tube, the fluorescent ballast must be removed and bypassed prior to installation. Line voltage is applied directly to the fixture: the live (L) wire connects to one end of the tube and the neutral (N) wire connects to the opposite end, making this a double-ended AC power input design. Once the one-time rewire is complete, the tube operates without a ballast, eliminating a common point of failure and simplifying future lamp replacements.

The LED-T828-40-4K replaces standard 32W T8 fluorescent tubes and uses the same G13 medium bi-pin base, fitting directly into existing lamp holders without socket modifications for double-ended wiring configurations. The tube measures 48.0 inches in length and 1.00 inch in diameter, matching the physical footprint of the fluorescent lamp it replaces. Light is distributed across a wide 300-degree viewing angle, providing broad, even coverage comparable to a traditional fluorescent tube.

This LED T8 tube carries a rated average life of 35,000 hours and is non-dimmable. It is mercury-free, starts instantly with no warm-up period, and is UL Listed for safety compliance. The tube is sold individually, with a full case quantity of 25 units 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 tube delivers 4,000 lumens at 4000K cool white — replaces standard 32W T8 fluorescent tubes in 48-inch fixtures
• Direct ballast bypass (Type B) design: operates on 120V–277V line voltage via double-ended AC input, eliminating ballast failures after a one-time rewire
• G13 medium bi-pin base, 48.0 in. length, 1.00 in. diameter — matches the physical footprint of the fluorescent lamp being replaced
• 300-degree viewing angle provides broad, even light distribution; non-dimmable; mercury-free with instant-on operation
• 35,000-hour rated average life and UL Listed; sold individually with a case quantity of 25 units