Pack of 10 Acolyte FloraLyte RGB Floralytes are a one-time use, disposable, self powered lighting unit. The Original FloraLyte is activated by removing a paper strip. Battery life of the lighting unit is 48+ hours. Floralytes are about 1.5" long x 0.75" wide x 0.25" thick. Each FloraLyte comes with loop for fastening and a black elastic string.