Alimentatore regolabile 72W da 3V a 24V adattatore universale AC/DC con 16 punte
(Check dc jack before buy: 5.5x2.5mm, compatible 5.5x2.1mm). No noise, no spontaneous combustion,no explosion,no fire hazard,safe to use. The knob can be adjusted more evenly, and it can reach 13V ~ 14V by rotating 50%.