Systems and methods for transcranial
light therapy address the deficiencies inherent in previous
light therapy devices. Improved adjustability of the location, placement, and directionality of the applied light, thereby improving efficiency of transcranial
light delivery and facilitating customization of fitment of the
light therapy devices to users of differently sized and differently shaped human heads and hair is provided. Improved mechanisms and methods for controlling light therapy application at each of a plurality of light application locations are also provided, such that light therapy treatments can be highly customized for each individual and / or therapy purpose. Simultaneous, sequential, or separate ocular visible light therapy is also available, thereby increasing the options for customized therapy modalities. The therapy devices are highly modular, permitting simplified repair and maintenance of device components upon component failure and allowing unnecessary device components to be removed from the device when not being used, thereby increasing user comfort.