100 Wh per day? That's not much heat lamp whatsoever. You sure that's your requirement?

If so, the generator you linked is dramatically overpowered. You should get a kit like this and a battery more like this. Then replace your fan and bulbs with 12v ones if necessary.

To answer your actual question, any "12V 100 watt" solar panel will be compatible with the generator you linked. You may have to put a connector on it yourself or buy an adapter to an 8mm barrel plug, like this one.