For years backlit signs were produced photographically. This process if very expensive and not color flexible in the production process. In the past 10 year digital backlits have become popular due the production process being more efficient which brought lower production cost. We recently introduced our ULTRALIT TRANSPARENCIES THIS NEW PRODUCT GIVES MORE VIVID COLOR AND VIEW THE SAME IN BACKLIT AND NON BACLKLIT SITUATIONS. CALL US FOR SAMPLES. YOU WILL BE GLAD YOU DID!!