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Greetings... I was thinking about buying a laser from OXLASERS and was wondering if I could trust their advertised power. Then I found this report. On their website I do not see them using the "<" symbol, however the report below says the host's printed external label contains this symbol...

Hi, I have spent the last two days reading this wonderful forum. I am hoping that the knowledgeable experts here will have time to answer my question. Here goes.... Imagine that I need to signal a craft orbiting the Earth as I stand near a major city at night. See photo: Can someone give...