DUAL- OR MULTI-FILAMENT LAMP
The utility model provides a dual-filament or multi-filament lamp. One set of filaments of the utility model is working filaments. Other filaments are spare filaments. When the working filaments are burnt out, one set of spare filaments is connected with a filament changed electrode (4), and the lam...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model provides a dual-filament or multi-filament lamp. One set of filaments of the utility model is working filaments. Other filaments are spare filaments. When the working filaments are burnt out, one set of spare filaments is connected with a filament changed electrode (4), and the lamp can be continuously used. Therefore, the service life of a dual-filament lamp can be extended by one time. The service life of a dual-filament fluorescent lamp can be extended by 1-2 times. If the dual filaments of the filament lamp are connected in parallel, the brightness of the lamp can also be changed. The service life of a multi-filament lamp can be extended in multiples. The brightness of the multi-filament lamp can be varied by a multi-stage mode. The lamp holder of the lamp is still matched with an original corresponding single filament lamp holder. |
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