This refers to the resolution. While not Full HD (1080p), 480p is the "Standard Definition" sweet spot. It looks great on mobile phones and tablets while keeping the file size small (usually between 150MB to 250MB per episode).
This refers to a popular niche of site naming conventions often used by third-party hosting platforms that provide direct download links for movies and series. vegamoviesnllucifer s04 dual audio 480p hdrip extra quality
This indicates the source of the video. An HDRip is encoded from a high-definition stream, ensuring that even at a lower resolution like 480p, the colors and lines remain sharp. This refers to the resolution