Dark room lamps

The utility model discloses a lighting device, especially discloses a darkroom lamp. The darkroom lamp comprises a luminescence circuit and an AC-DC controllingtriode circuit. which is characterized in that: the luminescent bulb is connected with the triode circuit; the triode circuit is connected t...

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Bibliographische Detailangaben
Hauptverfasser:	WANG BAOJIAN, ZHANG SHIFA, ZHAO XIUMEI, LIU KEFEN, LIU DONGYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a lighting device, especially discloses a darkroom lamp. The darkroom lamp comprises a luminescence circuit and an AC-DC controllingtriode circuit. which is characterized in that: the luminescent bulb is connected with the triode circuit; the triode circuit is connected to the electric supply by a transformation rectification wave filter. The beneficial effects of the utility model are: it solves the problem of various inconvenience for film developing in sudden power failure, and achieves the advantages of no heat source, energy saving and long service life.