Screw-type energy-saving lamp capable of shortening lifting time thereof
The utility model discloses a screw-type energy-saving lamp capable of shortening the lifting time thereof, comprising a lamp tube body formed by coiling glass tubes in a double screw manner; two ports of the lamp tube body are respectively arranged at the bottom part of a screw-type structure; core...
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Format: | Patent |
Sprache: | chi ; eng |
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