In line rf controllers for 4 colour rgbw led tape power input is connected to a dc5521 jack and controlled output is delivered to a 5 pin connector for connection to the tape available as a 433mhz master version with handheld remote control or a 2 4ghz slave version which can be independently controlled via the master controller in 3 groups designed to enable full rgb colour mixing with separate control for white output to provide variable pastel shades full rgb colour mixing and white c