Good for the price, But mine came kind of partially defect.Only one socket could been used out of two.kind of useless. I figured out that the outer contact (contact to the base of the bulb) on the broken socket is not connected. A manufacturing FLAW. I fix it using an wire from the good,connected outer contact of the working socket to the not connected outer contact of the defect socket.Otherwise i could have not been able to repair it since it can`t be opened without damaging the threaded base of the adapter.So, now both sockets are working, but initially did not, i had to fix it. I did not tested it with incadescent bulbs, only with filament LED bulbs(8.5W and 4.5W).So, seller should be more attentive regarding defects. The package came safe and well.
ok thanks