I. oldable,small size,2.5-4kg for weight, solar cooker in the market weight more than 15KG, cannot fold, too heavy, transport and carrying not convenient. II. Simple installing, Less than 5 minutes finish, solar cookin the market,it will take more than 30minutes for installing, wasting time and Labour. III. Never rust, Materials are not rusty, the market material made from iron or carbon steel easily. It can bear more than 10KG of weight and meet the daily food needs of 3-8 people. A lot of gas and electricity can be saved for some place. And some areas can even completely replace gas and electricity for most of the period. A lot of solar cookers with carbon steel plate in the market can bear the weight less than 3-4kg, which is seriously inclined and has A hidden danger.