FlareAlert LED road flares are the most cost-effective replacement to old-fashioned strike flares. LED flares are safer for the user (no risk of burns or inhalation of fumes) and the environment (no water or air pollutants). FlareAlert offers the Beacon with a 0.5 watt LED and the Beacon Pro with a 1.0 watt LED. The Beacon is available in two (2) colors (red/yellow), the Beacon Pro is available in five (5) colors (red/yellow/blue/green/white). All Beacon and Beacon Pro units come equipped with a built-in magnetic base. All units are crush and water resistant, have two (2) operation modes (flash/steady), and require no tools for a battery change. Battery life ranges from 30 to 140 hours.