... PMMA.(8) Ultra slim and fashionable design.(9) Directional lighting source, low light pollution(10) Wireless dimmer/RGB controller ... available (Optional)(11) Easy installation for celling, wall and pendant lighting. B.Warranty: 3 years from EXW date. a. ... apply to Hospital,Museum,Bank,Subway,Exhibition hall,Hotel etc.Recessed and Ceiling,Special apply to Hospital,Museum,Bank,Subway, ...