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9v Battery hacks - Switch, LED, Motor, Fan - Beginner tutorial | Science projects, Easy science experiments, Science
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How to connect switch with LED, 9v battery | science projects for kids | Science projects, Science projects for kids, Science
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How to Connect Multiple LED's with 9V Battery, Switch in Series Connection | Simple Electric Circuit - YouTube
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DIY How to Connect A Battery And Led Lights With an On-Off Switch | Science Project for Beginners - YouTube | Led lamp diy, Led lights, Led diy
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