The number of channels used by the LED tape is perhaps the trickiest notion to grasp here. An LED tape uses a separate channel for each colour it can display – so, for example, an RGB LED strip will draw power from three of your receiver’s output channels (one for Red, one for Blue & one for Green).
White or Single-Colour LED tape = 1 channel
Dual-White aka CCT LED tape = 2 channels (warm-white & cool-white)
RGB LED tape = 3 channels (red, blue & green)
RGBW LED tape = 4 channels (red, blue, green & white)
RGB+CCT LED tape = 5 channels (red, blue, green, warm-white & cool-white)