Easily convert your mason jars to Unique Conversation Pieces! Pre-Wired & Ready To Use. No Drilling of Jar Required! The lid fits mason jars with mouths measuring 2-3/4" across. Lamp components are UL Listed Takes standard size household bulb Mason Jar Lamp Kit Bright Brass Finish. Easily convert your mason jars to Unique Conversation Pieces! Pre-Wired & Ready To Use. No Drilling of Jar Required! This unique and charming Mason Jar Lamp Kit allows you to easily convert your treasured mason jar into unique, convenient electric lamp. This Lamp Kit is PRE-WIRED with 6 foot brown lamp cord! The socket has an on-off push-thru switch for convenience. All you have to do is attach the socket to the lid using the nut and threaded nipple included! Then add a light bulb, plug in and enjoy! The finish on the lamp socket and mason lid is a beautiful bright brass. The lids on these kits fit mason jars with mouths measuring 2-3/4" across. All the components are UL and CSA Listed and are top quality, brand new.