Our magnetic mount, battery operated LED warning beacon is a perfect choice for when you need portable, temporary emergency lighting and do not want to have to hard wire it into the vehicle's electrical system. It features 24 high output amber LED's. 60 triple flashes per minute. 4-1/4" diameter x 4-7/8" high. Uses two "D" cell batteries (not included). 300-400 hour battery life. Popularly used for for flat bed trailers, forklifts, logging and utility pole hauling. High strength magnet in base holds the light firmly in place. Photocell adjusts for intensity in high or low light levels.