[Utah-astronomy] Re: How to make a light-tight red-light sign box for star parties

Chuck Hards wrote:

One of the neater variations I've seen for this purpose was one of those programmable, scrolling LED signs, using only red LEDs.

You mean like this? http://www.liquidationconnect.com/storefrontprofiles/processfeed.aspx?sfid=9... I kind of liked this one. :) http://www.geeks.com/details.asp?invtid=LED-HAT&cat=GDT