... light dust-proof light 1.High performance clean light 2.2-40w,easy to install 3.Good quality,best price ... Directional lighting source3.High performance,low heat generation4.Easy to install Product'details:Certification:ISO9001,ISO14001 1. ... racks, laboratory sink, laboratory faucets. Laboratory renovation construction, clean room, sterile room decoration, ventilation systems engineering, laboratory ...