Stainess steel neck, applicable for indoor use or outdoor use in a waterproof fixture B22 to E27 socket extender, suitable for standard E27 screw base light Safe and, use this adapter for garages, basements, workshops, door light,, ceiling lamp Lower / Make your bulbs in recessed fixtures out and extend your existing B22 screw mount / fixture 360 degree bendable, you could give light to a special part according to your needs