Abstract: A headlight-light unit for a vehicle mountable in a receptacle of the vehicle has a headlight provided with a headlight housing, a light provided with a light housing and releasably connectable with the headlight, at least one springy locking element arranged on one of the housing, and a holding element on which the locking element is arrestable, the holding element being mountable on the other housing and bringable to different positions along a mounting direction of the light on the other housing.

Abstract: A headlamp for motor vehicles has a reflector, a gas discharge lamp, a front plate covering a light exit opening of the headlamp, and a filter arranged in a beam path of light beams reflected by the reflector and light beams transmitted directly to the front plate and at least partially absorbing light in a UV wavelength region.

Abstract: A headlamp for motor vehicles has a reflector, a discharge lamp located in front of the reflector, a glass envelope surrounding the discharge lamp and being transparent in certain sections to light of specific wavelengths, a lamp carrier which holds the discharge lamp so that the discharge lamp is arranged in a space limited at least by the lamp carrier and the glass envelope. The glass envelope blocks UV light in UV-A, UV-B and UV-C wavelength range.

Abstract: A headlight for motor vehicles has a reflector, a gas discharge lamp inserted in the reflector, an electrical pre-switching device arranged to supply the gas discharge lamp with high voltage, a lamp support via which the gas discharge lamp is inserted in the reflector, a detachable protective cap which covers the lamp support and the gas discharge lamp at their rear, an electrical line connected with the pre-switching device, and a switch arranged in the line and openable when the protective cap is removed so that the operation of the gas discharge lamp is prevented when the switch is opened.