For any specific Socket installation please feel free to ask. Material Brass And Metal Size:- Backplate: 5 diam. (Bulb Not Included) All work is Handmade Customization Also Available As Per Customer Demand Please note- All Our Chandelier lights are customizable as per customer demand, We generally use E27, E14, E12 Bulb Sockets in our Chandeliers Lightings, We Install the Type of sockets that suits the best for your chandelier lights. 1500 - 2000 K Candle Light.