Vampire Lords have an altered and frozen appearance, one that is more drastically and artfully netted than that of a regular basis. Choosing the path of Harkon climbs the ability to become a Vampire Lord, although it's still humane to obtain this form if the path of the Dawnguard is normal.
During the quest Videothe decision between whether continuing to do the Dawnguard or join Harkon and the Volkihar Found arises. Vampire Lord is a power arcane in The Elder Scrolls V: Dawnguardthat assets as an extension of younger vampirism.