The Tulsi-Hybrid solar box cooker has a unique electrical backup allowing it to be used with or without sun. In backup mode, a built-in thermostat automatically adjusts the temperature as needed. Comes with four black pots.Specifications: * Cooker size - 540 x 540 x 200 mm / 21.25 x 21.25 x 7.87 in * Material - molded body made of UV-resistant fiber reinforced plastic * Cooking capacity - 2 kgs, or 6-8 kgs per day / 4 lbs, or 13-17 lbs per day * Total weight - approximately 13 kgs / 29 lbs, including cooking pots * Tray material & coating - aluminum sheet, black painted for high UV heat absorption * Cooking pots w/lids - four stainless steel pots w/lids, hard black coated for UV heat absorptionEnergy source - solar & electric power for backupElectrical consumption - low setting 0.2 kw/h, high setting 0.4 kw/h depending on amount of food being cooked & ambient conditionsTwo power source - solar & electric 120 volts / 60 cyclesElectrical wattage thermostatically controlled: * Normal setting: 200 watts (2 amps) * High setting: 400 watts (4 amps), (+/-10%)