H01K9/00—Lamps having two or more incandescent bodies separately heated
H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
Landscapes
Circuit Arrangement For Electric Light Sources In General
(AREA)
Connecting Device With Holders
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Non-Portable Lighting Devices Or Systems Thereof
(AREA)
Dispositif multiplicateur de puissance en particulier pour le calcul de la resistance des materiaux, la realisation d'empreintes, le bridage de pieces ou autres