From the MAKE Flickr photo pool:
This project is to replace the 12 volt lamp in a stock auto clearance lamp with a flashing red led that can be used to provide a caution light around a telescope when viewing under dark conditions with more than one person around. The project is based around a stock beehive clearance lamp from any auto parts store.
Flashing Marker Beacon
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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at garstipsandtools.com.
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