The power comes from us at a roofed terrace for use. If you now sits evening outdoors gives the whole the impression like sitting under the stars. The light is not very strong, but is obtained by around terrace a pleasant, diffuse brightness. And the best, the things shine all night until the morning the sun rises. I can only recommend the light grid, also the service of suppliers is highly recommended. The network was installed in about 30 minutes and is functioning properly.