text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_name_15 (class VARCHAR, power VARCHAR)
  ### Question:
  What is Class, when Power is 78 Watts?
  ### Answer:
  SELECT class FROM table_name_15 WHERE power = "78 watts"