Imagine you have a series of image attachments and files on a lead or account page. With standard functionality, users have to click on each image separately to view, and then close them down to see another. The Lightning Image Slider does away with that and makes it easy to scroll through each image, without the slow procedure of clicking onto each item. You can also set it up for autoplay, and adjust how long each slide stays on the screen.
The Lightning Image Slider lets an admin user to quickly setup a image carousel on Lightning Experience that displays the image attachments of a sObject record. This component can also be leveraged by developers to embed within another Lightning Component/Application as well as Visualforce pages.