Specifications Power supply 12v.. Power of light max 25w (40w available upon request) Min time 5 secs each color (lamp). Max time 9 min & 50 secs each color (lamp). Timing values; 4 groups of completely independent timing values. Size 119x74x36 (without connector) Automatic change lamp sequence, battery And transistor Protection device reverse polarity switch and electronic fuse. Program memory permanent memory without power supply. Synchronous memory more than 10 min (battery connection not shorter than 5 min) -Manufactured to European Standards We also produce different kinds of road safety product