LEHNER 12 Volt spreading technology Made in Germany for over 25 years.Download the free LEHNER app to your smartphone or tablet.The settings for your LEHNER spreader will then be available offline on your device and can be synchronized at regular intervals.You select the granulate you wish to apply, then enter the spreading rate, speed and working width and the app will show you the required setting for your LEHNER spreader.If you have an online connection, you can also receive news through the app.