I bought the extra Lighthouse as a supplement, because my 2 supplied have not been enough. Therefore, there is to the product not much to say. It does what it should. For my taste, the iRobot does not move close enough to the Lighthouse zoom. The robot rotates about 20cm in front of the Lighthouse. Knowing this, one can reckon with the but.
A pity, I find that there is no way to disable the good pieces. Therefore all Lighthouses flash 24 hours a day cheerfully to himself. There are of me a star less.
