Abstract: A wearable law enforcement patrol light and signal device including a housing to be worn by a law enforcement patrol officer on a bulletproof vest or on an arm. A high intensity light source is mounted in a front plate of the housing, the high intensity light source electrically connected to a source of electric power in the housing. A switch activates and deactivates the high intensity light source, or the high intensity light source may automatically deactivate. The high intensity light source emits an alternating burst of light of at least five thousand lumens outward when the high intensity light source is activated. The housing of the device also supports a plurality of warning lights, identification badging, a communication system, and other features in a single housing that a patrol officer would normally wear as independent elements.