Buyers Products 4 Inch Round Rechargeable LED Road Strobe/Flares are designed as an alternative to incendiary road flares. They feature nine flash patterns for high visibility including a steady "on" mode and a flashlight mode. The IP67 waterproof rated and crush-proof orange housing includes a magnetic bottom and hanging loop. The flares float, making them well suited to marine applications as well. They feature a continuous run time of 8 to 60 hours depending on which flash pattern is being used and fully recharge in 4-5 hours.