Home/Office 3448 Inch Reading Lamp by House of Troy Home/Office Reading Lamp by House of Troy - PH100-91-J Base dimension is 10.5 inches round. Shade dimensions are 8.125 inches by 3.75 inches. Fixture comes with a 10 foot clear cord. The height of this lamp is adjustable. - Home/Office 3448 Inch Reading Lamp by House of Troy