The co-148tdx from falcon eyes is a separate control unit to control the sophiez led lamp so-148tdx. the controller has an lcd touch screen with which you can control the lighting. you can power the controller via an ac adapter or via optionally available v-mount batteries. Sticker or no sticker? When you use this control unit with sticker, the power block of your so-148tdx must also have a sticker. this purple sticker with yellow edge and 4 yellow dots must be present at both controller and power supply (or not at both). it is located on the power block of the so-148tdx and this controller co-148tdx (see images). if the power block of your so-148tdx does not have a sticker, you cannot use this controller with that sophiez version (unless the ac adapter or controller is specially adapted for you). if in doubt, please contact us.