This kits combination of 2 hard & 1 soft light gives a lot of options for run & gun interview lighting, indoors. Try the soft output of the Rifa eX 44 as your key light, and the 2 Pro-lights for fill and hair light.
Or swap them around and use a Pro for hard key with soft Rifa fill, with the other Pro as a back or hair light. Pro-light's focsuing ability and its barn doors give you versatility in beam control.