The heating pad initially showed good values - but only one winter. Then the thing was totally death. Also no difference between stage 1 and stage 2 was from the outset to determine. It was both Level 1 and Level 2 in pretty hot. The emphasis here is more on hot than nice! Probably because inside then what blown. The seller Relax Days denied now the withdrawal - although 2 years warranty. I should prove that the product was defective upon delivery. Sure - I cut the article now on the purpose of inquiry. What nonsense! Conclusion: cheap junk from China, pollution and sellers Relax Days frivolous!