Oh, good choice. I have a couple of those with the clear (white) lenses and they are good quality lights - hadn't seen the red/green lenses or the nice holder before. We've used them as anchor lights and, like you indicated, a set of fresh rechrgable batteries will last several nights.

Sam

: http://tek-tite.com/src/product_info.php?id=2162

: this red/green running light will not ruin your night vision if you fold the
: cover over the top portion of the lense that shines back at you. I've
: paddled around Annapolis using these and had sailboats say they could see
: me a long distance away and that they are much brighter than the suction
: type they use on their inflatable dinghies. More than one boater has asked
: about them. With three AA lithium batteries it'll burn for days and be
: very bright.

: If you're paddling with friends and they're concerned with having your white
: aft light ruining their night vision you can mount a bright LED flashlight
: under the aft deck bungies and shine it onto your pfd. While technically
: this is not a legal running light it does provide illumination and if
: you're in an area where being totally lit is a priority I doubt the harbor
: police/coast guard will cite you. The red/green running lights aren't as
: blinding.

: The Sierra lights you mention aren't worth it IMHO.