ToughLITE Retrofit Tray Luminaire. We are quite unique in our ability to manufacture retrofit trays with minimum fuss.  Our service requires a site visit on which we perform an inspection of the fitting(s), taking onsite measurements and then return it to a fully working state. No downtime will be incurred at all.  Sometimes your existing housings are still perfectly fine. Retrofitting into them with a new LED tray is not only the most cost-effective solution but also causes minimum disruption.  Fitting a new tray can take as little as 20 minutes per fitting.