Solar panel size: 5.5 x 5.5cm; Overall size: 9 x 9 x 6cm; Length of light string: 550cm; Single dragonfly light size: 6 x 5cm. Charges by day when there's enough sunlight and turn on/off automatically when the sun rises and sets. Easy to set up waterproof and sun block. Widely used in places such as yard store and stage especially for making romantic atmosphere during festivals. Solar penal: 2V 100mA. Battery: 1.2V AA Ni-MH 600mA. 30 LED lights color: red white blue and green. 3 Modes: Steady on fast flashing and slow flashing. Charge 8 hours under the sunlight last for 6-8 hours at night. Fix the solar panel with the pole make sure it is not covered by other objects or it may not charge effectively. Remove the mask on the panel press ON/OFF button to make it work. The water resistance is limited with rain and moisture please don't dip it in the water for long time.