Lights Link
Below is a link which covers ships light requirements. Although it is a UK web site, from what I've seen, the rules are international.Select "Sailing" about halfway down the web page.To save battery power, a tricolor light, one that is a combination white/green/red where the arc for all the colors add up to 360 degrees, can be used under sail.When under power the red, green, white stern, and steaming light must be shown.Windex does make a light specifically designed to light up the reflectors under the tabs and under the arrow ends. Link: http://www.davisnet.com/marine/products/marine_product.asp?pnum=3200 We put one on our boat and ran a separate pair of conductors up the mast just for it. Pulling the mast and rewiring everything was much more expensive than the light - but it's nice to have.