Head Light is a hostile creature for Minecraft PE. They have the ability to release various lights out them, like conversations, white, and extremely loud lights which can damage the eyes. These are in the form of humanoid creatures with an elongated body, a lamp on their head, and desiccated skin.

The app gives you the ability to add the creature to your Minecraft world and allows you to create them with all kinds of different skins, including the regular skin, as well as skins that will give you various effects and abilities. They are very tall, thin, and desiccated, and they have a lamp on their head. 

You can download this app and create a regular Head Light in the Minecraft world.