The LED beacon is generally used on towers or water tanks. It is big cluster of LEDs, an LED bulb in general, and it is hoisted over a water tank, a tall building or a tower, to let people know the presence of that tower in the night. It is especially hoisted to warn the flying airplanes about the presence of the building. The LED warning beacon is always red, and it is mandatory in most countries to hoist this LED beacon over one’s building if it is tall enough o come in-between air-flights path.