The Spellman Lunchbox is self generated for heating and cooling through solar power and can be sustained without any outside electrical devices. Originally designed in mind for construction workers, a prominent feature is a large enough size lunchbox for two meals and a liter size thermal container. Another space consideration are removable wall dividers to allow for adjustments within, whether extending or shortening compartments. The bottom level of the lunchbox is also detachable when extra space isn't needed. The main feature, heating and cooling, allows for temperature controls within compartments. Made of sturdy lightweight metal this lunchbox also comes with a shoulder strap for hands free maneuvering.