If Amazon had zero I would give zero. Dead after 4 uses at 300 degree heat maybe less than 5 minutes at a time. Now it doesn't work without turning on. It's too late, I can't return it, don't waste your money, buy a good brand.
Pros
SAFE DESIGN: Equipped with an ergonomic handle that is comfortable to hold and non-slip. At the same time, the use of insulating rubber materials improves the safety of soldering irons.