8 flashing modes can be adjusted, 10 levels of brightness, timer and power on/off. Requires 3 AA batteries (not included). The lights powered by low voltage, no need to plug in. It's safe and energy saving for indoor & outdoor halloween party. The battery box meets IP44 water resistant requirement that can stand all kinds of bad weather. Durable, enjoy your carnival night. Halloween decorations outdoor ghost lights with 30 LED, total length 16.4ft. It made of high quality copper wire with PVC transparent material. Lead length 1.7ft, lamp spacing 5.9inch. Skeleton Skull String Lights are suitable for trees ,fireplace mantels that can be act as a decorations for garden, home, yards, patio. This is definitely a great halloween party decor!