Lighting sensible loads are selected and automatically added to the calculation through the Lighting form accessed by clicking on the Lighting Button. Both incandescent and fluorescent lighting types may be selected either simultaneously or exclusively. Default typical wattage values are automatically entered for each lighting type but these may be over written simply by typing new values in the appropriate input boxes. Multiples of different lighting types may be simultaneously selected by repeating clicking on the Add button. Similarly, by highlighting previously entered selections, clicking on the Delete button will remove from the calculation only the data corresponding to the highlighted selection.