Lightning Components are part of a new UI framework for creating single page web apps for various devices.
Salesforce offers an “out of the box” prebuilt component set. Additional custom components are available on the App Exchange.
To install lightning components:
- Go to Setup > User Interface > Lightning App Builder
- Click New
- Select a type of lightning page (App Page, Home Page or Record Page)
- Choose your layout
- Drag and drop Lightning Components into layout
- Save and Activate