Abstract: An optical device for incapacitating individuals exposed to generated light. It has a housing with a head portion and window opening, a reflector with a focus facing the window opening, a power source, an electric lamp mounted at the reflector's focus. It emits a high intensity incoherent light beam of between 380-780 nm. It has a switching and isolation circuit connected to a pulse mode power conversion and a first control circuit to the electric lamp, and connected in parallel to a steady state mode power conversion and a second control circuit to the electric lamp. Both the pulse mode power conversion and control circuits are connected in common to the power source. The circuits apply pulses of power to the electric lamp temporarily increasing the total luminous flux to incapacitate one of more targeted individuals within a duration of less than 2 seconds.