It is possible to find 12-volt light fixtures on CampingWorld.com and Amazon.com, as of 2015. Both websites feature 12-volt light fixtures as well as replacement bulbs and lenses. Camping World offers 12-volt solar light fixtures.
Find 12-volt light fixtures on CampingWorld.com by clicking Generators & Electrical under the Category heading, choosing Lighting, and then clicking Light Fixtures. The website allows visitors to refine results by categories such as brand, bulb type and price.
Find 12-volt light fixtures on Amazon.com by clicking Shop By Department, Automotive Parts & Accessories, RV Parts & Accessories and then Lighting. Refine results by clicking Exterior Lighting, Interior Lighting or Light Bulbs. Amazon.com offers free shipping for Amazon Prime members.