Low Wines are not wine. It is the name given to the product of the first distillation for the likes of Whisky, Rum and Brandy.
All spirits made from scratch start with a fermented wash (like a beer or a wine) and turn it into a higher ABV version through the process of distillation. This raises the ABV (for example taking a wash from 10% ABV to 25%) but compared to what occurs in the second distillation, this is very low.
This ‘first pass’ distillate, is known as the Low Wines. It forms the raw material of the second distillation, which takes the liquid and transforms it into the kind of strengths we are all familiar with (60-80% ABV for Whisky and Brandy, higher for the likes of Vodka), which is known as the distilled spirit.