These great solar lights illuminate automatically during darkness. With one color changing LED per mushroom you can get up to 8 hours of light at night when fully charged. Stake mounting allows for easy placement through out your garden. 4 mushrooms per set and each is powered by 1 color changing LED light. 3 lbs., each mushroom is 3.9" long x 4.1" tall, 5 foot cord on each mushroom with 5' cord for solar panel. Automatically turns on at darkness and provides 8 hours of light when fully charged. Replaceable rechargeable Ni-MH battery. 1 Year Manufacturer's Warranty.