Used with Dyson v10. Despite the fact that the head is light, this seems to be a disadvantage in this case. The head doesn't sit firmly on the floor and isn't balanced by the rest of the vacuum. This makes it appear to rise and doesn't make as good contact with the floor and carpet. Otherwise it appears to be Dyson compatible and the LED lights are a nice addition. But it seems like he's struggling to pull things out of the ground... so I'm not sure if he's really worth it at all costs unless he's doing the main quest. Took a risk because of the low price but will probably just go back and buy a genuine Dyson part instead.