CCFL U shape L shape sprial shape oval shape lights: 1,20,000hrs lifespan; 2,High btrightness; 3,B/R/G/O/Y/W/P colors. CCFL ... shape,e.g straight shape,L shape,U shape,ring shape etc.it is also have the advantages of long lifetime,excellent color rendering index,well -distributed lights ... , widely used on advertisement light box,scanistor, and LCD display back lights etc.