The Traffic Logix variable speed limit sign lets you program the speed limit to change based on days of the week or times of the day. Ideal for use in school or work zones, the variable speed limit sign lets drivers know when the speed limit has changed. According to the Federal Highway Administration, nearly 1,000 people are killed and more than 40,000 injured in work zones each year. The adjustable speed limit sign ensures that drivers are aware when lower speed limits are in effect. The speed limit can be programmed to flash when motorists exceed the speed limit. An optional strobe, now offered on all Traffic Logix signs, provides further warning to speeding drivers. The variable speed limit sign offers the high intensity leds and all product features of the standard Traffic Logix driver feedback sign. The system can be powered by direct or solar power.