Motor feature: 200-600W 24V ,450W max 36V,600W max high quailtiy , 100% copper,500 hours life time vacuum cleaner motor XWB9524V ,450W max 36V,600W maxhigh quailtiy , 100% copperbottom size :144.2MM ,height 168/176mmlife time of carbon brush: 500 hoursCE approved DC 24V 36V vacuum motor