Sparklike devices are built to last for many years of services. As with any other products, careful handling and annual maintenance/calibration of the device prolongs the device(s) usability. There is not a specific number of years to expect as the life of a Sparklike device because that is mostly affected by how the device is used and maintained on daily basis. A general recommendation about the life expectancy of a Sparklike device is 8 to 10 years.