The store is for you! If you are not satisfied with the product, please contact me first and do not leave negative feedback lightly. Thank you, have a nice dayQuality shops are at your service! ILoveMilan Product weight: 50 lights 238g, 100 lights 390GPackage size: 14*7*9 Accessory size: 1.8 cm in diameter Product LED head number: 50LED Power supply: use 3 AA batteries, sale without batteries Product Features: 1 constant light, 2 wavy changes, 3 continuous changes, 4 flashing changes, 5 slow flashing changes, 6 bright and dark changes, 7 dream changes, 8 fast flashing changes Note: The product is sold without batteries Specification: 1. Number of LEDs: 50 pieces 2. Color lights: multi-color (warm white / blue / white / 4 colors / purple / red / pink) 3. Output voltage: