HLG clips, or hybrid log gamma clips, are a type of HDR content that make use of both standard dynamic range (SDR) and high dynamic range (HDR) formats. This allows for more flexibility when editing and exporting your videos, as HLG clips can be viewed in their full HDR glory on compatible devices, while being viewed in standard dynamic range on other devices. This makes HLG clips a popular choice for creators who want to reach the widest possible audience with their content.