Watchfire's monochrome LED signs are true classics and helped to set the standard for outdoor LED signage. No longer are you tied to a one- or two-line scrolling text message center when you choose monochrome. The higher resolution 19mm Watchfire uses an LED display with more than 4,000 shading levels, providing depth plus high resolution detail. Images and animated messages show up with a vivid splash. The lower resolution 35mm Watchfire provides less detail and depth, but still plenty of attention-getting punch.