This adapter allows you to use a Edison Screw Light Bulb in a Bayonet Lamp Socket. Items are made of metal and heat resistant plastic. Users should ensure that correct items of appropriate voltage are used and should consult suitable qualified electrical engineer if unsure. 1. Worked as expectedfit Philips Hue light bulbs well. 2. product is simply an adapter for assisting with fitting of another product. 3. The E27 Lifx bulbs fit nice and tight with little movement and the bayonet fitting connected cleanly into the existing light fitting and all working perfectly. 4. Easy to install just as you would a light bulb nice tight fit not to loose. 5. Nicely made and useful adaptor to have. 6. These are great to make use of those bulbs that have a screw fit and you want to pop them into a bayonet fixing. Colour: White Product Dimensions: 60 x 35 mm Voltage: 240 volts Material: Plastic Special Features: switch adptor Package included 5x B22 to E27 Bulb adapter