Savior Products' ALERT Emergency LED Safety Lights are designed for a variety of applications including: automotive, truck/fleet, marine, construction, power sports, camping, police and household. ALERT safety lights are perfect for signaling traffic, LED lighting, marking trail checkpoints, and signaling for help. The cool-touch LEDs last for over 40 hours and will not overheat! Traditional road flares only last about 15 to 30 minutes and can reach up to 2900°F in hot environments, creating a dangerous scenario. ALERT features 9 light modes: single blink, double blink, triple blink, alternating blink, rotating S.O.S (distress), solid high, solid low, and flashlight. Features rubber housing with a no-slip grip to prevent slipping and rolling and an integrated hook for hands-free use. ALERT is magnetic and can attach to vehicles without scratching paint. For non-magnetic surfaces, use the included magnetic mounts. Each ALERT light requires 3 AAA batteries for power.