** Shares in SMA Solar Technology S92G.DE slip around 2%after the German solar power parts supplier narrowed down its outlook
** The company says its sales and earnings will be in the lower third of its guidance range due to weaker economic environment and higher uncertainties caused by volatile tariff policies
** "Outlook deterioration will weigh on shares," a local trader says
** The stock is at the bottom of the German small-caps index .SDAXI
(Reporting by Anastasiia Kozlova)
((Anastasiia.Kozlova@thomsonreuters.com))