MINI SIZE: The size of our product is 1 x 1.5 cm / 0.39 x 0.59 inches, small size, very and suitable for mini crafts, so you can rest assured that you can use it. BATTERIES: The mini light is powered by AG3/RL41 batteries (included), can last more than 72 hours in a row, long lighting time, the brightness will decrease over time. OPERATION: Before turning them on, remove the plastic part that the batteries discharge it, easy to turn on/off by simply turning the lid tight/loose. APPLICATION: Illuminate paper lanterns for weddings, floral arrangements, garlands, bridal sets, centerpieces, cutlery, votive candles, vases, balloons.