Troffers
Troffers are recessed fixtures designed for grid (drop) ceilings, most commonly in 2x2 and 2x4 sizes, and are the workhorse of office, school, and healthcare lighting. Rock Lighting & Electric stocks LED troffers and panels for commercial ceilings.
Troffers
Linear & Troffers
Frequently Asked Questions
What is a troffer?
A troffer is a rectangular light fixture that drops into a suspended grid (drop) ceiling, sized to replace a ceiling tile — typically 2x2 or 2x4 feet. LED troffers have largely replaced older fluorescent troffers for their efficiency and even light distribution.
What is the difference between a troffer and an LED flat panel?
Both fit grid ceilings, but a troffer has a deeper housing with a lens or louver, while a flat panel is a slim, edge- or back-lit luminaire. Panels are thinner and very uniform; troffers can offer different optics and higher output options.
What size troffer do I need?
Match the troffer to your ceiling grid — 2x2 or 2x4 are standard. Use delivered lumens and the room's target light level to determine how many fixtures and what output you need; many LED troffers are wattage- and CCT-selectable.
Can troffers work with lighting controls?
Yes. Most LED troffers support 0-10V dimming and integrate with occupancy and daylight sensors and networked controls, which is often required to meet commercial energy codes such as Title 24.