... Bright blue-green fluorescent display . Display characters: 2 line x 20 characters / line, 40 characters, 5 x 7 Dots Character size: high ... Bright blue-green fluorescent display . Display characters: 2 line x 20 characters / line, 40 characters, 5 x 7 Dots Character size: ... windows charge of Marketplace, Hospital,airdrome, Station, Post, Bank etc. Double line VFD POS customer display with DC power