... ,shopping mall,supermarket etc. 2010 hot buy industrial lighting.TYPE SERIAL NUM DIAMETER BASE TYPE POWER EFFICIENCY ... .666-20MProduct Features:Products name:2010 hot buy industrial lighting.Insulation class: IHemispherical, sand-blasting lampshade.Anodic ... oxidation.Highly efficient, evenly distributed lighting, no dark zone.Separated components, allowing distance adjustment ...