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While Charlie Brumbaugh's answer is good, there is a cheaper and simpler alternative: a LED marine distress flare. These are handheld LED lights, as bright as a distress flare. Many jurisdictions c...
Answer
While Charlie Brumbaugh's answer is good, there is a cheaper and simpler alternative: a LED marine distress flare. These are handheld LED lights, as bright as a distress flare. Many jurisdictions c...