This 3 piece decorative solar light set is the perfect addition to your yard and garden, and costs nothing to operate! The color-changing LED inside the transparent hummingbird, butterfly and dragonfly constantly cycles from red to green to blue once dusk falls. 1-3/4 in.-square solar panel hangs on each stake and charges the built-in AA NiCd battery in direct sunlight, so once dusk comes, these decorative solar lights automatically illuminate your yard or garden with changing colors.