The Lenovo PA 1450-55LU power adapter, product number 01FR020, supplies compatible Lenovo notebooks from a mains outlet. It is intended for indoor use, such as at a desk or workstation.
Its output is 45 W at 20 V and 2.25 A. Check these values against the requirements of your notebook when identifying a suitable adapter; the listing does not name specific notebook models or connector dimensions.
The adapter is black and described for laptop use. The product listing identifies Lenovo as the compatible brand.