Had been one always works well on the heater over the changing table that has. The other two we had last year then used for the Christmas tree lighting, but then came the disappointment. Sometimes went alone to or from, sometimes it did not work. No idea what it was. Will the return. Eventually we went for a few hours and then hurt the 600 watt infrared heater comes on and draws me only as the money from the stock market. No thanks.