This special heater has been specifically designed to fit in Diesel Particulate Filters (DPF) or exhaust gas systems, can work in the presence of high temperature and corrosive environment. Even if designed for 12V applications, can active work for minutes in the presence of higher voltage spikes. It's 100% tested with automatic in line machines and the lifespan designed to last several thousands of cycles and tested accordingly. The thin dimension makes it a perfect solution for small systems.