... oxidated, to enhance the beauty of its appearance. U efficient light guide plate, heighten the luminous intensity.2. Illuminant- low ... Parameter: Item NO.DescriptionProduct size(mm)Specification Power Color temp Input voltageBean angleled quantity(3528SMD)Light sourceLuminousLife spanLDM-FY-180Round & ... meeting room, factory, office, house, institution, school, hospital, etc. Corridor down light