code: def set_load_power(self, power_watts):
          
          new_val = int(round(power_watts * 10))
          if not 0 <= new_val <= 2000:
              raise ValueError("Load Power should be between 0-200 W")
          self._load_mode = self.SET_TYPE_POWER
          self._load_value = new_val
          self.__set_parameters()
docs: Changes load to power mode and sets power value.
          Rounds to nearest 0.1W.
  
          :param power_watts: Power in Watts (0-200)
          :return: