Drill holes, push lights in and connect cables. Can be installed for outdoor or indoor decoration, like deck step, stair, kitchen, stairway, bathroom, shelve, cabinet, living room, fountain, pool, backyard, eaves, fence, pergola, walkways, outside, accent lighting. Warm White LED(Lumen for each single light is 50LM. Color temperature: 2800K-3200K). DC 12V output(12V power supply transformer included), support Max 20pcs in series. (32mm)Dia. x (23mm)H x (22mm)Cut out,with 3M/118inches power cable from plug to the first light. Max distance between 2 lights is 98cm/38.5inches. Total length is about 13M. IP67 Waterproof Rated, safe for indoor and outdoor use. Ultra long lifespan over 50,000 hours. Made of high quality PC+304 Stainless Steel. Walkover pressure MAX. 220 LBS. Grade-A LED chips(0.6w/pcs, energy saving and environment friendly).