We thought the Design Pro LED puck light from Kichler Lighting was the thinnest product of its kind we had ever seen. We were wrong! This low-profile Invisiled Pro flexible lighting system from W.A.C. Lighting has it beat. Measuring less than 1/8th of an inch, the dimmable, energy-efficient tape installs easily—with self-adhesive tape—and delivers 200 lumens per foot. It uses light emitting diodes, which the manufacturer says last up to 50,000 hours. It can be cut in the field for custom applications and is available in 1-foot, and 5-foot sections. www.waclighting.com.