5W Per Ventilatore USB Regolatore Velocità Controllo Efficiente per Ventole 5V con Manopola
Rated Power: 5W (Do not overload). And the range is wider! This module is a stepless speed regulator, the output electric tooth range changes smoothly between 2.5V and 8.0V. It can be applied to the very common 5V USB fan on the market.