DISCHARGE LAMP LIGHTING DEVICE AND LIGHTING FIXTURE
In order to suppress cost of an initial investment by a user and running cost to the user to a low extent while substantially constantly maintaining an apparent illuminance, and further, to realize resource saving, in a case of using a fluorescent lamp FHF 32 as a discharge lamp La, a lamp supply po...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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