the CPL-B series different with others models.Just install on the ceiling,.. Not need open a hole, the CPL-B series include 6 different models, its 6W, 12W,18W., Round and square power is same,INput voltage is 100-250V, The color temperature can be choose warm white, Cool white, and nature white.. 3years warranty. Welcome to inquiry or buy !!

CPL-B Products list