If you are looking for a bright, energy-efficient light that can be used in a commercial or residential space, 
LED T8 U-bend lamps are a great solution.
A U-bend lamp is a linear tube that has been shaped into a U. LED T8 U-bend lamps operate off a fixture’s existing ballast, without any extra labor or rewiring. It is a plug-and-play replacement for fluorescent tubes that works straight out of the box, and is suitable for use in a totally enclosed, bi-pin socketed luminaires.
Designed to deliver over 1800 lumens, these energy-saving LED lamps are quick, easy, and safe to install.