Several people wrote me to ask whether the wingtip strobe kits were still available, which used the wingtip-located independent power supplies. These kits are still available in the November 2004 Wag-Aero catalog, Page 38, part number 156-0003 (12V) and 156-0004 (24V). This is the style most often seen, that installs over the existing nav light assembly. The Wag-Aero website can be reached at http://www.wagaero.com/. This link is also in the BAC Links page.