... shortest functional unit detachable: 75mmOperating with any 12V mini IC controller (controller is optional item)Specifications:PCB thickness: 0.2mmWorking voltage: 12V ... length of the string light:10m,20m,etc3.LED Qty:100pcs,180pcs,etc.4.LED color:white,warm white,yellow,blue,pink,etc ... .5.Color of line:white,green,etc6.Standard:GS,EU ...