E27 to E12 adapter converter is crafted from iron nickel-plated and material, wear resistance, small size, lightweight, easy to install. Easy to transform any screw-in E12 bulb into E27 base, excellent solution to an usual problem of different light bulb. Features -Color:Assorted Color -Material: , iron nickel plated -Size:5.50X2.50X2.50cm/2.16X0.98X0.98in - The E27 to E12 testing conversion lamp holder is a versatile product that allows you to easily convert E27 bulb to E12 base for testing purposes. - Made with iron nickel plated and materials, this conversion lamp holder is durable and reliable. - E27 to E12 socket adapters are incredibly easy to use, simply insert the conversion lamp bulb into the existing lamp holder to complete the conversion. - With these conversion lampholders, you have multiple quantity options to meet different needs. - With solid construction, produces less heat, anti-burning and wear resistant, safe from electric flaming. Package list: 8 x E27 to E12 Socket Adapters