This is a flower string ethical motive, tote up 2.2 M with 20 bulbs which projected lifespan of up to 30,000 Hours. No, no radiation, air mass consumption, air mass safety, battery operated, air mass convenience, you can use them almost anywhere Fabulous decoration for interior & exterior, so much as Christmas party, Prom night party, birthday party, bar, restaurant, bedroom, stage, etc.. graceful and artist flower design, high-quality material, safety and energy-saving, home décor must-have. Power : 3 x AA battery -LRB- Not Included -RRB- .