Quote:
Originally Posted by Redshift13
I have a 1mW green laser which I bought for $8 (delivered) from eBay.
It's perfectly adequate for pointing out the wonders of the night sky to my astronomically uneducated friends and relos.
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Many cheap laser pointers do not produce the claimed output. They can be wildly above or well below the stated value.
Whether 1mW is adequate depends on how dark the site and sky are. Here in the burbs 5mW is often insufficient.