PixelFit Power SupplyOur new Retrofit RGBW Pixel System uses standard C9 socket wire. Unlike current retrofit systems on the market, our bulbs are individually controlled. This means they are capable of not just static colors, but dozens of amazing linear motion effects and static repeating color patterns. 24V transformer for the PixelFit Controller. Will power up to 300 of the PixelFit C9 retrofit bulbs. Color Options: 29 Color Combinations Socket Compatibility: Standard