Helioscreen’s LightTool is a software tool to help you in selecting a shading strategy for the best possible visual comfort. It shows you how to optimize the use of natural daylight in combination with Helioscreen solar shading fabrics. The LightTool is essentially a set of daylight simulations of an existing office under various conditions. There are three user options : You can request a calculation by filling out all required parameters via the “Calculation” menu. Download the try-out version for free Buy a license at an annual fee of 250 EUR and get unlimited access to the online version and/or download the desktop version.