It has RGB thermal option. Plus a whole heap more different spectrum colours. Only the single lense. If u go duel lense u lose some of the clarity, so these make a great option. If your not after the radiometric version i do have one that is not.
To do this type of work i would highly recommend the R version so you can actually measure temperatures. If your only using it to inspect Solar i wouldn't bother with a gimbal setup. Just attach camera with a GoPro style mount and connect to video TX. Cheaper and easy. I have a 30Hz FLIR Pro R...