A lighting device configured to deactivate dangerous pathogens (e.g., MRSA bacteria) in an environment. The lighting device includes at least one lighting element (656) configured to provide light and a wavelength converting element (657), wherein at least a first component (700) of the light comprising light having a wavelength of between 400 nm and 420 nm, and at least a second component (704) of the light is converted into light having a wavelength of greater than 420 nm. The first component (700) of light has a minimum integrated irradiance of.05 mW/cm