... years 1).If driver failed, we'll send you a new driver; 2).If LED failed, we'll ... send you a new LED; 3).Unclear reason, we will send you a new full set. All ... All with signature of the responsible.Maybe, you will ask me, do you have patents or certificates that indicate your ... , let's together seeing led downlight housing using in daily life: Why Choose ONLLA!1.Quality Control1). ...