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Luz de trabalho LED COB USB de 30W para exteriores com 3 modos de camping, lanterna de emergência, refletor de busca, luz de acampamento
US$10.99 US$24.70

Q: How is possible with 4 x AA bateries to reach 30W - that means 5A per battery, and if this works 4 hours - it makes 20Ah battery - where can I buy such AA batteries ?

perguntado por m1l3n sobre 2019-02-19 03:39:49

sggulei 1.2a*4.1v=5w. Its real with 1 or 2 battery 18650. Only 5w in real. But with AA 4*1.5v*1.2a=7.2w in bright mode. In low mode 0.3a*4.1v=:(

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Luz de trabalho LED COB USB de 30W para exteriores com 3 modos de camping, lanterna de emergência, refletor de busca, luz de acampamento
US$10.99 US$24.70

Q: does it work directly from usb? without battery?

perguntado por zcream sobre 2019-08-14 05:10:02

sggulei Yes work via usb on charging and without battery, but with lower brightess. Also can normal work with 1! 18650 battery.

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