32-Watt Equivalent 12-Watt 4 ft. Linear Non-Dimmable T8 LED Bypass Tube Double Ended Light Bulb Daylight (25-Pack)ProLED T8 Linear Bypass Lamps are energy efficient, long lasting replacements for traditional T8 and T12 fluorescent linear lamps. Most reliable and efficient way to retrofit existing Linear Fluorescent T8 and T12 luminaires with simple rewiring. Re wiring necessary to remove the ballasts. 50,000 hour life resulting in lower maintenance costs over time. Brightness: 1800 Lumens Lifetime: 50000 hour Color temperature: 5000K, 82CRI daylight Energy used