Design Pro LED discs are some of the sleekest accent lights you're likely to find. With an ultra-thin 3/8-inch profile, the fixtures are well-suited for the inside and underside of cabinets, as well as other applications. Their manufacturer, Kichler, claims the Energy Star-rated discs' LED technology uses 75 percent less electricity than incandescent lighting and will last for 40,000 hours (or approximately 20 years). Kichler Lighting, 866.558.5706; www.kichler.com.