2 years ago (edited)
Edit: any loot bag, not just enemy. The image shows torches, candles, and clothing dropped. It emits light like a torch. If you ONLY drop clothing or some other non-light object, it will still emit dim light in 1 radius, and be bright light on top of it.
Seems to be a bug. While underground fighting the final group of soraks, I killed one hanging on a wall, who then dropped a loot bag. It was shiny as a new container and mechanically provided a light source, giving me normal targeting against the other sorak 5 feet away.