The invention provides a UV illumination device for sterilizing and disinfecting a desired item or area. The UV illumination device comprises a base of a fixed housing. The base comprises a pair of electrical terminals establishing connection with external power source. A movable housing is connected to the fixed housing through a mechanical joint. The movable housing includes a plurality of light sources, a motor, an adjustment lens, a camera unit, a memory unit, and a controlling unit connected to the camera unit and the memory unit. The plurality of light sources, the camera unit, the memory unit and the controlling unit are mounted on a base plate. The controlling unit includes a processor configured to perform certain computing operations in order to control adjustment in the direction of UV illumination by the UV illumination device.