1.1XUltra bright RGB LED bulb2.RGB Colour Changing3.Outdoor use4.1X600mA Ni-mh batteries5.Glass ball dia:8.8cm6.Integrated Solar Panel 2v/ 60MA7.Perfect for garden decor8.No running costs or wiring9.Dimensions:15cm x 40cm (h)The integrated solar panel charges the rechargeable battery each day using the suns rays. Simply make sure that the wind chime is placed in maximum sunlight during daylight hours. The running time of the wind chime will depend on the amount of charge received. An inbuilt photo sensor detects the light level each evening; when night falls the light will activate automatically， and when dawn approaches it will deactivate