Something like this is hard to evaluate, for me anyway. Does it work?? Yes. I installed it plugged it in after 5 min checked the temperature with a Therm gun and it was on and warm Approx 60degrees. As far as lifetime ?? I don't know. I had one on my pipes ( Different Brand) for 10 years. It worked well and I was happy. The reason I replaced it ?? The Electricity went out for 14 hours and the pipes froze. I had to fix the pipes and I replaced the heater tape , because it was 10 years old. I hope this one serves just as well.