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Hi Alan,
I have to agree that 200 mW is way over the top, and in fact is dangerous, because your eye can't blink fast enough to protect itself. With this power, even reflected light from something that inadvertently passes through the beam can be strong enough to cause eye damage. The way around this is to wear appropriate laser safety goggles, which sort of defeats the purpose for astronomy.
I have a much lower power laser attached to my scope, and installed a key switch in series with the on / off switch to reduce the risk of it being turned on inadvertently.
Chris
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