The GTL Is A Specifiable, General-Purpose Recessed Led Troffer That Offers Flexibility and Control Options For Budget-Constrained Spaces. GTL Recessed Troffer'S Economical, Solid-State Lighting Is Ideal For New Construction, Renovation and Retrofit Opportunities. It Is Ideal For The Broad Range Of Applications Where General-Purpose Fluorescent Lighting Currently Prevails Including Offices, Schools and Commercial General-Ambient Applications.