I've gone through 3 of your product, "illumabowel" in roughly a little over a year because it does not last more then an average of 5 to 6 months & then it's done working...the product is great when it works & i appreciate the prevention of "light shock" in the middle of the night, but you sucking too much money out of people because it is overpriced to begin with & it doesn't last for very long...what do you suggest to do to rid this issue of your short lived product?