Applicable occasions: The Light Converter Base is ideal for living areas, bathroom, commercial, kitchen, outdoor lighting, bedroom. Material: The Bulb Holder Converter is made of metal, plastic and flame retardant and environmentally friendly PBT, which is safe to use. Function: Lamp Socket Converter is designed to convert an screw fitting to a bayonet cap fitting. Feature: Bulb Screw Socket Adapter is able to convert B22 light socket to E27 light socket easily. Perfect replacement: The Light Converter Base is the perfect replacement fitting to be used in a workshop, garage, dry basement, which can replace your old or damaged light socket adapter.