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Troffer lights are fixtures that are laid into a ceiling grid to illuminate indoor spaces. They can also be surface mounted or suspended as well with the appropriated mounting hardware.
Troffer lights are typically used in commercial applications such as classrooms, conference rooms, hospitals, offices and retail spaces.
Troffer lights are available in three sizes, 1 foot by 4 foot (1x4), 2 foot by 2 foot (2x2) and 2 foot by 4 foot (2x4). These varying sizes allow for flexible installation in ceiling grids. The 1x4 and 2x2 sizes are designed to easily fit into tight or narrow spaces, whereas 2x4 sizes are more appropriate for larger, more open areas.
Troffers also use different diffusers or lenses such as baskets and parabolic louvers to control brightness and glare to provide evenly distributed light. They can help provide direct lighting (down towards the floor) or indirect lighting (up towards the ceiling) from the fixture.