... ). If driver failed,we'll send new driver;2). If LED failed,we'll send new LED;3). Unclear reason,we will ... ,mall,bank,hospital,airport etc. Why Choose ONLLA!1.Quality Control1).Light efficiency:110lm LED chip,in housing about 80lm/w2).Driver ... ).professional sales and customer-service dept. both work for you,high efficiency of communication;3).report order status every day;4 ...