This can be done with any pepper. Just make sure to remove the stem, seeds, and veins from them before dehydrating.
It is important to cut out discarded peppers with rotted parts on them. One contaminated pepper can ruin an entire batch!
I ended up with only 2 Tablespoons of pepper power after using about 2 dozen peppers so get way more than you think you need. These will turn into almost nothing.