These features are convincing:

short cleaning time of approx. 15 seconds per sash side – even at high speeds
three safety features: rope tension sensor, slip clutch and automatic shutdown on overload
span adjustment (option)
simultaneous cleaning with both bug cleaners possible
various mounting plates for easy and flexible installation
tear-resistant Dyneema line (return rope)

Package include:

2 pieces BWS electric winches in open design, mounted in a tube
double switch for instrument panel mounting
installation kit single seater (or double seater)
installation and operating instructions

Original source:
https://soaringxx.com/product/bws-electric-winch-in-the-tube/