supply of led glow sign boardled glow sign board,supply, erection, testing & commissioning of one led glow sign board of (divisional railw ay manager office,adra) in bengali language , single sided made of acrylic illumination letter illuminate d by 3 or 4 module light, letter color all showing warm white(4500 k), all light operating by suitable smps a nd high grade materials with proper mounting arrangements and frame ( if required) as per site requireme nt to compete the work in all respect at the location or as advised by competent railway authority. size-18 f eet x 2 feet. [ warranty period: 30 months after the date of delivery ] ] , supply, erection, testing & commissioning of one led glow sign board of (divisional railw ay manager office, adra) in hindi language , single sided made of acrylic illumination letter illuminated by 3 or 4 module light, letter color all showing warm white(4500 k), all light operating by suitable smps and high grade materials with proper mounting arrangements and frame ( if required) as per site requirement t o compete the work in all respect at the location or as advised by competent railway authority. size-18 feet x 2 feet. [ warranty period: 30 months after the date of delivery ] ] => limited