These lamp holders are designed to meet the needs of modern lighting enthusiasts. The E27 and E14 bases are compatible with a variety of bulbs, making them suitable for different lighting applications. The diameter fits seamlessly into your fixtures, providing a secure and stable connection that enhances the overall functionality of your lamps. Features -Color:Black -Material:Iron -Size:5.10X5.10X3.50cm/2.00X2.00X1.38in -Hole diameter: 10 mm -Note: E27 socket -Wide compatibility: the e27/e14 socket is compatible with a broad range of bulbs, making it easy to upgrade your lighting fixtures to suit different needs -Simple installation: the screw design allows for quick installation, you can replace your lamp holder without any hassle -Suitable fit: the lamp cup diameter ensures a secure and stable fit, providing consistent lighting and minimizing safety concerns -Decorative design: the candleshaped bulb holder adds a touch of elegance to your home decor, making it suitable for various decorative lighting applications -Practical use: made from iron materials, this lamp holder is designed to withstand high temperatures and provide excellent conductivity, ensuring a list: 30 x lamp holders