Ronda set of LED solar lights with ground spikes It is easy to insert these three solar-powered ground spike lights into any unpaved ground to provide a touch of brightness outdoors. The round border is made of metal, whilst the cover and the ground spike are made of plastic. Each individual light is equipped with a solar panel and a NiMH AAA 1.2 V 300 mAh battery, as well as an on/off switch and a twilight sensor. When the battery is fully charged, the ground spike lights emit an effective decorative light for up to eight hours, wherever they are placed.