While I like the light on the new Stealth Pro, this new design only goes up to 86 degree. The original Stealth would go to 92 .. This is the only reason why I would with Jagar if I were to buy new heater. But for the time being, I will continue using both heaters. I do have some bad Stealth heaters to be returned for replacement (new and old designs). I also has one bad Jagar to be returned for replacement as well ...