LED Troffer Lights

What is a troffer light?

A troffer is a recessed rectangular light fixture built to sit in a suspended (drop) ceiling grid. It replaced the fluorescent troffer as the standard for commercial ceilings. The fixture combines a housing, an LED light source, and a lens or louver in one lay-in unit for offices, schools, and healthcare.

What's the difference between a troffer and a flat panel?

Depth and optics separate them. A troffer has a deeper housing with a shaped lens or louver, controlling glare and giving a finished architectural look. A flat panel is a thin, edge- or back-lit sheet that sits nearly flush with the grid. Troffers suit spec jobs; panels suit low-profile, budget retrofits.

What lens or louver options do LED troffers use?

The optic sets glare control and appearance. A prismatic (acrylic) lens spreads light widely at the lowest cost. A parabolic louver uses metal cells to cut glare for computer work. A volumetric (center-basket) troffer mixes direct and indirect light for even, low-glare output. Choose by the task and ceiling height.

Can I retrofit an existing fluorescent troffer to LED?

Yes, two ways. A retrofit kit (magnetic LED strips or a center light bar) installs into the existing housing, reusing the frame. A full LED troffer swaps the whole fixture for a cleaner result. Retrofit kits cut labor and disposal; new fixtures give a fresh housing and full warranty.

What sizes and output do LED troffers come in?

Troffers match the ceiling grid in 2x4, 2x2, and 1x4 formats. A 2x4 LED troffer typically draws 30 to 50 watts and produces 3,500 to 6,000 lumens, replacing a multi-lamp fluorescent unit. Most include 0-10V dimming and selectable CCT between 3500K and 5000K.

Comparing ceiling options? See the low-profile alternative in LED Flat Panel Lights, add egress coverage with Emergency & Exit lighting, power the fixtures with LED Drivers, and control output using LED Dimmers.