Ledwholesalers 48 Watt Power Adapter and Inline Dimmer for Flexible LED Strip, 3215+3318 Include 3 amp power supply with inline dimmer for 12 volt LED strips Convert AC voltage to DC for use with LEDs. 3-Prong Outlet Power cord included, Automatic Overload cut-off For indoor use only  this product is not waterproof or weatherproof