FLOWROTOR Solar Powered Van Roof Duct Vent Extractor Spinning Fan Ventilator BLACK [FLOWROTOR Solar Roof Vent] - £52.99 Inc. VAT : FLOWROTOR - Van and Commercial Vehicle Ventilation - Spinning Roof Vents -
What is this thing spinning on top of this van? : r/whatisthisthing
What is this black round thing on the roof of this transit company van? It was spinning fast. : r/whatisthisthing
ULTRAFLOW Low Profile Spinning Van Roof Vent Air Extractor Ventilator WHITE [AVTWHITEVENTLOW] - £44.99 Inc. VAT : AVT Commercial Vehicle Lighting Products - Flashing Beacons, LED Lightbars Van Roof Vents, Commercial Vehicle Products
What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just