Which Sonicare handles does this base charge?

It is made for Philips Sonicare handles that charge inductively on a pedestal base. Check your handle's model against the base before buying, since not every Sonicare generation uses the same stand.

Does it come with a power adapter?

The listing describes a charger base only. Confirm whether a cord or wall adapter is included before you rely on it to replace a full charging set.

Will it charge my brush faster than the original?

No. It is a standard charging base, so charge time matches the original stand for a compatible handle.

Can I leave the handle on it all the time?

Yes. Sonicare handles are designed to sit on the charger between uses, and the base stops charging once the battery is full.

Is it worth it over a third-party charger?

A genuine base fits the handle properly and is sealed against toothpaste and water at the sink. Third-party stands are cheaper but fit and sealing vary.