... on , no noise, no UV, no strobe light;Adpot own-designed LED driver with high power factort;Low ... , no UV, no strobe light, no pollution;Lightguide material:Al-alloy shell, High thermal conductivity Color: Single color,bi-colour ... art galleries, museums, offices, reading-room, corridor, staircase lighting,such as contour rangePackage of LED ceiling light :A,DescriptionIndividually package for each LED ...