Indoor ceiling lamp 1) Watt:23w/40w 2) 6 patents ... high-pressure cast aluminum, with anticorrosive epoxy coating--Lamp shade is stretched by high-purity aluminum, and ... treated with anodic oxidation technics--PC lamp cover with anti-dazzle designing and excellent transparency. ... widely used in the office, meeting room, hall, indoor parking lot, entertainment place, etc. Light Spectrum of ...