This product is always be installed on the step-board, bottom, trunk of car. It also can be used as house decoration. It's main character is super anti-water. So it can even installed on the bottom of ship or yacht to prevent hitting. It formed by a aluminun bar with a empty channel inside. Led lamps are assessed in it. Then it be dumped with epoxy-resin glue. Glue will turn to be hard. The whole process is finished. Size: 450*9*20mm voltage: DC 12v