12 pcs E17 to E12 LED Bulb Adapter E17 to E12 Compact Fluorescent Light (CFL), Incandescent Light bulb, Neon lights Lamp Adapter Holder Socket Converter E17 to Candelabra Screw E12 Socket Pack of 12 Units, Converts standard an E17 screw-in socket into a candelabra E12 socket Widely used for E17 to E12 Halogena/LED/CFL/Incandescent/Neon Any Bulbs, all voltages Small size, light weight, easy to install Size:2.1x1.8x1.8cm/0.83x0.71x0.71inches High temperature resistant, insulation, erosion resistant and anti-aging