Uplight Vase Kit - Piano Black w/Purple Light - Super Bright and Fully Submersible LED Light - Long Lasting Batteries - Can Also Be Used Without Light - Built In Prongs and Scent Ring LED Light is fully submersible in water. Each light uses (2) CR2032 3v batteries (included) Batteries last approximately 20 hours under normal use Can be used indoors or outdoors 3" tall x 3.5" wide. Made of shatterproof acrylic