【Solar powered】powered by solar energy, each windmill in the yard is equipped with rechargeable ni-mh batteries, they will charge for 6-8 hours during the day and work for 8-10 hours when night falls. 【Durable using】the retro wind spinner is equipped with a bright warm white bulb and a large-capacity battery. This is made of durable and anti-rust paint metal with ip65 waterproof grade, which can illuminate even in bad weather. 【Rgb changing lighting】as night falls, the cracked design glass ball flashes a soft, jewel-like light, bright metal and rgb changing lighting create visual enjoyment in the garden. 【Wind spinners dimensions】83*22inches, there are multiple connecting rods inside, which can be installed according to your favorite height. It can be easily assembled without wiring and without any installation tools. 【Instructions of wind spinner】the instruction sheet is included in the package, pls kindly ready it carefully if you have any questions about its usage or directly contact us.