Flashing LED Chevron Arrow Mat delivers three different safety light modes of operation. Since LEDs are solid-state devices that offer high shock and vibration resistance, the LED mat is an ideal safety item for truck drivers, utility workers, emergency personnel, etc. It operates for up to 72 hours on three AA batteries in the sequentially flashing mode; 48 hours in the all-arrows-flashing mode; and 6 hours in the arrows-always-on mode. Magnetic pads allow attachment of the mat to ferric-metal surfaces. LEDtronics Inc., Torrance, Calif. Companyinfo