Do you want a kind of professional converter for your light bulb? Do you want to install E40 light bulb into E27 light socket? This can be your best choice. Really practical and useful, just install it into your light socket.Features-Color:Black-Material:Bakelite-Size:4.50X4.50X8.50cm/1.77X1.77X3.34in- Converts E27 small screw socket to E40 large screw socket for easy use.- This light bulb socket converter is suitable for home, commercial and other occasions.- Reliable quality and long service life. Easy to install, no professional skills required.- Can be used in light bulb conversion in garages, shops, workshops, basements, monitoring systems, carports and other scenes.- Tough, durable, can be used repeatedly, very practical and excellent, very decorative and chic.Packing list2 x Bulb Adapters