The blv 648 blower blower is easy to operate for a long time thanks to its low weight the electronic regulation of the fan makes it possible to use on an ornamental gravel bed since only the foliage is removed by the maximum air speed of 240 km h the device can be operated alternatively with the additionally required 2 ah or 4 ah 48 volt li ion battery from the 48 volt system features 48 v lithium ion battery ergonomic softgrip handle technical specifications motor type brushless