Abstract: An illuminator for providing high intensity light to an extremity such as an arm or leg of an infant has first and second spaced support blocks on which the extremity is positioned and strap means for holding the extremity in position; a hollow light directing housing is positioned between the support blocks and has an internal mirror reflector which receives light from a remote projector bulb via a fiberglass conduit extending between the projector bulb and the housing with the light being reflected upwardly through an aperture in the upper portion of the housing in which the portion of the extremity to be illuminated is positioned. The aperture in the housing is adjustable to accommodate extremities of various widths.