Parts of LED lights are heat resistant, LED lights normally emit some heat specially from high watts led lamp, but the designed heat sink structure can eliminate or limit the temperature rise under the general ambient temperature from -40℃(-40℉) to +55℃(131℉). Anyway, if the environment temperature can reach up to +70℃(158℉) for especially industrial metal iron processing workshop, high temperature high bay lights should be used because it request with extra heat delivery surface.