Porcelain socket with 30" leads and bottom hickey that works with standard1/8 IPS pipe. Rated 660W and 250V. Overall height (including hickey) is 2".We ship with other items to save on freight costs. We sell for less in lots of 20- see our store.$2.44 each.Shipping is $3.64 for 1plus$.48 for each additional socket.Combined shipping- to get cheapest shipping costs (when buying different items)please buy what you need and “request invoice” so we can send invoice with lower shipping costs. "How to Request Invoice when using shopping cart"---From your eCRATER cart, near the top of the page, move your mouse curser over our name “lamppartsguy” and a drop down menu will appear with the option to request invoice from seller.k5n,RcmdId ViewItemDescV4,RlogId p4%60bo7%60jtb9%3Fuk%601d72f%2B26rkpg%7C%3Ek5n-13fccc782c5-0xf3-->