Which is specialized in LED Deep UV LED , Water treatment and LED Fixture Water sterilizer , Air sterilizer , Food sterilizer , Health care , and Customized UVC sterilizer module . Qingdao LYD Electronics Co ., Ltd , found in 2011, covers around 3000 square meters in Qingdao China . We focus on providing environment - friendly but energy saving lighting solutions to our people . Our products range from indoor & outdoor lighting tools to commercial lighting sources . LED Lighting is our specialty . Qingdao LYD Electronics Co ., Ltd builds a strong R & D team .