| 摘要 |
A method of providing a safety warning light for a traveler over a period of months of intermittent travel, that makes use of a battery operated lighting apparatus that provides light when motion and darkness are detected and that when still or in daylight uses, on average, less than 4 milliamps of power. The lighting apparatus is used over the period of months without activating any switch prior to use or deactivating any switch after use.
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