Showa Seiki Kogyo Co., Ltd. - Model Name: S-150 - Application: For ornamental plants - Power Setting: 100V 150W - Features: For indoor use Found at my parents' house. It seems to be a heater for a greenhouse. Only the item in the image is included. I don't know how to use it, but if anyone understands its value or appreciates its age, please consider it. Power-on confirmation (photo attached). It got warm. No thermostat. There is aging, dirt, etc. As-is condition.