In 2012 the old style flasher buoys on Lake Winnipesaukee which were a yellow light, were replaced with a new style flasher with a white light. The old yellow flashers lasted for a longer period of time than the new white flashers, maybe 1/2-second vs 1/5-second, and the old yellow flashers were easier to see from a distance. The old style flasher were similar to a yellow tinted incandescent lamp, and the new style flashers are similar to a white tinted fluorescent lamp.
The new style flashers which are more difficult to see from a distance are probably made by
www.sealite.com in Tilton NH. It is both the white vs yellow color, plus the 1/5-second vs 1/2-second exposure for each individual flash that made the old yellow flashers easier to see from a distance. They showed up better with their yellow color, and longer lasting .5-second "Y-E-L-L-O-W B-L-I-N-K" ......... as opposed to a brief .2-second "white blink" ..... you get this picture!!! .... blink-blink-blink!!! ....
