Dynamic lights is a mod that converts static lighting generated by blocks and objects into dynamic lighting. Which results in a much more versatile and realistic lighting system than without having this mod installed.

While by default in vanilla Minecraft the lighting has an action range and from then on it does not happen, with this mod installed the objects will have a variable lighting range. For example, a torch will light up creating a swinging flame effect, whereas without this mod, torches will always light up the same way. This effect will also occur on redstone torches, lamps, glowstone blocks, fire, and other objects that emit light.

This dynamic lighting will also allow us to light our way while we have a torch in hand, just as we can throw a torch on the ground with the “Q” key and the torch will continue to light up. The latter is very useful for cave exploration, since we can illuminate the depths of a cave without placing torches.