supply of design, manufacture, erection and installation of wall /hanging / floor mounting type led illuminated sign / direction boar , design, manufacture, erection and installation of wall /hanging / floor mounting type led illu minated sign / direction boards in full elliptical (fe) / half elliptical (he) / semi elliptical (se)/ parabolic shap e. the display sheet shall be of unbreakable 040 translucent polycarbonate sheet of 2 mm thickness. the t ext /graphics matter visibility shall not be less than 160 deg. the approved colour text and graphics shall b e printed / router cut on monomeric calendared vinyl of 70 um thickness and shall be firmly pasted on displ ay sheets. the mounting arrangement shall be hanging, wall mounting, ceiling mounting, pole mounting or floor mounting and as per site requirement. the signage shall have the integral mounting arrangements wi th sturdy structural frame and acp cladding on the back side of the signage to avoid rusting and entry of du st. the led board shall have uniform illumination with 4-8 w / sq. ft and with brightness more than ambien t light. suitable size end cap of 1.5 mm thick ss 304 should be provided. note: the work should be execute d as per the approved detailed specifications (standard signages at stations on indian railways. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]