This Leviton lamp holder is perfect for your T8/T12 LED or fluorescent bulbs. It is designed to provide a secure and stable connection for your light bulbs with its bi-pin connectors and can handle up to 600V. The lamp holder is made of high-quality materials and is Energy Star certified for its efficiency. The pack includes four lamp holders with a model number of 13661-SNP, and they come in a sleek white color that will blend seamlessly with your indoor lighting setup. The lamp holder is easy to install and is compatible with a wide range of bulbs with an EC Range of A+++ - E.