The invention relates to a high-pressure discharge lamp with a lamp vessel unit (100) and a lamp base housing (200). The lamp vessel unit (100) is secured on the lamp base housing (200) such that a lamp vessel unit (100) tubular end (101), out of which a current feed (108) protrudes, is arranged in a receiving area (204) in the interior of the lamp base. A labyrinth-type electric insulation is provided at the tubular end (101) of the lamp vessel unit (100), said labyrinth-type electric insulation being designed as a ring (500) through which the current feed (108) is passed and which has a meandering structure in the cross-section along the ring diameter.
