If you need something when the power goes out, or when (god forbid) if you go camping and do not have another power source readily available, this can give you a flashlight for a few minutes, can be used as a radio, and can give you a very brief mobile phone charge. But, it in no way will give you 30 minutes of flashlight power for one minute of hand cranking. You get more like 10 minutes. So, it is not totally worthless, but with the advent of portable solar chargers that you can put out in the sun and then plug into your phone to give it power, and can then use your phone as a flashlight, to get the radio, etc., this is really just outdated, especially for how it actually performs vs what the marketing says it is capable of.
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