The one on the left is a "hybrid" Habanero from a "high-yield" plant. I know because I'm growing them this year - I've got a gallon size ZipLoc bag full in the freezer already. Supposedly, the plants were to grow boatloads of Habanero's but they really haven't - in fact, my regualr Habanero plants are providing about twice as many peppers as the high-yield (go figure). The heat level is about the same as a regular Habanero, so they're interchangeable.