Using this Jackson HSL - 100 welding helmet is easy. Just put it on your head and adjust it to fit comfortably. When you start welding, the auto - darkening lens will adjust itself. Make sure to keep the sensors clean to avoid any blockage. The helmet can handle high heat, but don't expose it to temperatures above 350 degrees F. For battery maintenance, replace the battery after about 800 hours of use. If you need to clean the lens, use a soft, dry cloth. Remember, the helmet comes with a two - year warranty, so if you have any issues, contact the seller.