Laptop lcd 15" ccfl lamp 310mm Our CCFL tube use the nickel, driving model is high pressure without the tungsten break. The span life is 50000 hours and warranty is 3 years exceed the LED size : 19 inch wide LCD tube 417/418mm 19 inch square LCD tube 385mm 22 inch LCD backlight with lenght 480mm 17 inch CCFL LCD backlight with lenght 350mm we also have some short ones for mobile phone like 30mm, 50mm,65mm and so on And some longer one like 1000mm 1200mm and so on for that big dispaly screen.