Here are a few things to note before selecting a motorised system for your home: 1. Type of installation. Your window size and the weight of your interior blinds will have an impact on the torque exerted by the motorised system. For larger windows and heavier blinds, you’ll have to select an adequate motorised system with the right torque. 2. Silent motorised systems. To ensure you get the optimal acoustic performance offered by the Sonesse® range, Somfy highly recommends the use of the “Designed for Silence” range of accessories offered by our partners. - Select a smooth fabric. - Take great care while installing the solution. 3. Nearby power source. A power supply must be readily available near the motor. We recommend all Somfy products to be installed by a certified professional.