Eliminating fire hazards, toxic fumes and pollution, the PF200 Safety Lights from PowerFlare have 16 bright LEDs and 10 user selectable flash patterns, including strobes, rotational, solid-on and SOS. The Safety Lights are 4.25 inches round, 1.25 inches high and weigh 7 ounces. These waterproof Lights float and can be run over by trucks providing several LED colors to choose from and infrared. The PF200 will flash from 8 to 150 hours, based on the pattern selected, before needing a battery change. Lights are available in battery or rechargeable.