Video: Shielded versus unshielded lighting
Jeremy Evans – who volunteers for the International Dark Sky Association (IDA) wrote in an email to EarthSky:
Hello, I’m a long-time subscriber and amateur astronomer. I wanted to share this video I made showing the benefits of dark sky approved lighting to help combat light pollution.
Thank you, Jeremy!
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Bottom line: A video giving a dramatic demonstration of the benefits for stargazing of shielded light fixtures.