I purchases the Aerosun VX landing lights for the wing tips. In order to install them, it is necessary to purchase the install kit. All through Aircraft Spruce. I am buying a lot through AS recently. The install kit is necessary as the opening for the light framework is larger than the opening available with the stock wing tip. It is necessary to cut back the existing opening, per directions, and install the new wing tip. I cemented in place the new tip. Now I will glass in the tip with BID, which I ordered from AS tonight. In the mean time I will begin fitting the light fixture.