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1) Its switch system is based on advanced magnetic induction technologies, so it has a long service life and reliable performance
2) Shaking it for 30 seconds, and it keeps working for 30 minutes.
3) No battery inside the flashlight
4) There is a big capacitor inside the flashlight. Its use is to keep power from shaking and supply power to flashlight.
6) Warranty: 1 year
7) Length: 17cm
if any problem, PLS feel free to contact with us at any time