this is what I posted earlier in the board to someone who inquired into heat panels in general. maybe it will help some, though I don't not use mine for the incubator so I can't help with that.
here was my post regarding my experince with different panels.
get the pro products ones!!! I got the radiant heat panels big apple herp sells (not sure if they are the same as lll reptile) but I ended up having to use two of the same size to heat the warm side (one on the top of the cage and one on the back wall of the cage). Two of those added up to the same cost of the pro products ones. The pro one only took one and it easily put out the heat I needed where the other one still struggles even with the two to get into the 90's. feel free to drop me an email if you have more questions.
PS heat panels are way more cost effective than using all those bulbs that always seem to burn out and run on more power.
pictures of the cages with the radiant heat panels
cage pictures/info
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Misty Sprouse Ball Pythons