Hand holding contactless glowing light bulb, Wissensnacht Ruhr, a project for the climate metropolis Ruhr 2022, here in Dortmunder U, Hand hŠlt kontak

- Image ID: RG5YH8

Hand holding contactless glowing light bulb, Wissensnacht Ruhr, a project for the climate metropolis Ruhr 2022, here in Dortmunder U, Hand hŠlt kontak

Rupert Oberhäuser / Alamy Stock Photo

Image ID: RG5YH8