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DIY 9 volt LED Flashlight v.1.0 - YouTube
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日期：2025-06-06
Homemade single-mode flashlight that snaps onto 9-volt battery - inspired by a famous brand of backpackers' LED light. Slide switch and wiring were scavenged from an old VCR, PP3 battery connector (not visible due to black tape wrap) was harvested from a ...看更多
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