Koolertron Red 12V Car LED Programmable Message Sign Scrolling Display Board with Remote (Red) Size:23*5*1cm(9.05"x1.97"x0.39" inch). Red LED 7 x 40 dots. Life span: more than 100,000 hours (about 10-15 years). Total 9pcs messages,each message can store max 250 characters. Power: DC12V10%,powered from a 12V DC car lighter outlet via a long 3m cord.