T8 LED (light emitting diode) tube light bulb with medium bi-pin base. Designed to work without the fluorescent ballast in place and requires rewiring of the light fixture by a qualified electrician. Installation instructions and field installed labels are included to warn against installing fluorescent bulbs. Features double ended wiring ensuring bulb will work with either shunted or non-shunted lamp holders. Approved for use with tube guards. Installation protection, will not light if the ballast has not been bypassed. All glass tube prevents sagging and yellowing over time. Damp location rated, cULus classified and DLC (DesignLights Consortium) listed. 5-year warranty. Lawful for sale in California.