Mansa Lighting, Accent Lighting System Accessories, Inline Dimmer Switch Working Voltage: 12V, 12A, 144W Connectors: One Male 5.5x2.1mm, One Female 5.5x2.1mm, Controller Size: 42mm * 13mm * 3m, Length: 235mm Four Medium Flexible Silicon Clips For Fastening/Mounting Wires (And Securing Screws) Application: Dimming Accent Light Strips Usage: Has 8 dimming pre-sets and 5 dynamic modes (not sure why flashing would be desirable, don't hit that button)