Box of 10 Acolyte Submersible Floralyte II with 2 Superbright LED Lights Available in White only 2 Super Bright White LED's on one unit - double the brightness. These lights can be submerged in liquid (not recommended for drinks). Uses 2 CR2032 batteries to last up to 24 hours (included) Dimensions 1.25" D x 1" H, about the size of a quarter.