Abstract: A lampholder has a socket having an inner end and formed with an outwardly open lamp seat defining an axis and adapted to fit with a base of a high-voltage lamp and with a pair of inwardly open blind contact holes. A base fitted against the inner end and formed at the contact holes with respective contact seats has a floor formed in line with each contact hole with an axially throughgoing aperture. Respective contacts in the contact seats are each formed with an abutment arm extending along a wall of the respective contact hole and a spring arm extending into the respective contact hole and elastically deformable from a rest position closely juxtaposed with the respective abutment arm to a holding position spaced therefrom. Thus a conductor pushed through one of the apertures into the respective contact hole will wedge between the contact arms.

Abstract: A lampholder has an outer sleeve centered on an axis and having a radially inwardly projecting lug having an axially inwardly directed end face and an inner core adapted to fit with a lamp, fittable inside the sleeve, and formed with an axially inwardly directed face axially alignable and engageable with the outer-sleeve end face on rotation of the core in the sleeve in a predetermined sense in a fully inserted position of the inner core in the sleeve. Interengageable retaining formations on the core and on the sleeve inhibit rotation of the core in the sleeve opposite to the predetermined sense when the faces are axially aligned with and engage each other.

Abstract: A lamp holder has a socket housing forming a seat centered on an axis, and a contact fitted to the seat and formed unitarily with a pair of opposite generally axially extending sides flanking the axis. A front finger extending generally axially from one of the sides has a pair of opposite edges and therebetween a face directed radially toward the axis and pressing the lamp contact pin transversely of the axis against the other side. A back finger extending from the other side offset laterally from the front finger has an outer edge juxtaposed with the one side. The conductive core is pinched between the outer edge and the one side laterally adjacent the front finger and bears laterally against one of the edges of the front finger.

Abstract: Two substantially identical LED modules each have a nonconductive base having a straight edge and a pair of faces, at least one LED on the base, and two conductive traces on the base connected to the LED and forming on one of the faces inner and outer contacts spaced along a line perpendicular from the edge with the outer contact between the inner contact and the edge. The modules are juxtaposed at the edges with the lines aligned with each other and the one faces generally coplanar. A clip has a nonconductive body bearing on the one faces of both of the bases at the edges and two respective conductors on the clip body having portions spaced apart along the aligned lines and bearing on the contacts of both bases. The clip body and conductors are pressed against the bases to engage the conductors with the respective contacts and secure the bases together.

Abstract: A lamp holder has a contact spring which, instead of being bent into a U-shape and having its barb on the bracing shank opposite the retaining shank, has a bracing barb or lug bent out of the retaining shank itself and engageable as an indexing member behind a projection formed on the lamp housing.

Abstract: A lamp holder has a socket housing forming a seat centered on an axis, and a contact fitted to the seat and formed unitarily with a pair of opposite generally axially extending sides flanking the axis. A front finger extending generally axially from one of the sides has a pair of opposite edges and therebetween a face directed radially toward the axis and pressing the lamp contact pin transversely of the axis against the other side. A back finger extending from the other side offset laterally from the front finger has an outer edge juxtaposed with the one side. The conductive core is pinched between the outer edge and the one side laterally adjacent the front finger and bears laterally against one of the edges of the front finger.

Abstract: Two substantially identical LED modules each have a nonconductive base having a straight edge and a pair of faces, at least one LED on the base, and two conductive traces on the base connected to the LED and forming on one of the faces inner and outer contacts spaced along a line perpendicular from the edge with the outer contact between the inner contact and the edge. The modules are juxtaposed at the edges with the lines aligned with each other and the one faces generally coplanar. A clip has a nonconductive body bearing on the one faces of both of the bases at the edges and two respective conductors on the clip body having portions spaced apart along the aligned lines and bearing on the contacts of both bases. The clip body and conductors are pressed against the bases to engage the conductors with the respective contacts and secure the bases together.

Abstract: A lamp holder has a contact spring which, instead of being bent into a U-shape and having its barb on the bracing shank opposite the retaining shank, has a bracing barb or lug bent out of the retaining shank itself and engageable as an indexing member behind a projection formed on the lamp housing.