Light is another important element in Little Alchemy 2, and it can be used to make Lighthouse, Rainbow, Lightsaber, Flashlight, Optical Fiber, and X-Ray. To make Light, you need to make Electricity first. See the detailed instructions below from the basic elements.
Air + Fire = Energy
Earth + Fire = Lava
Air + Lava = Stone
Fire + Stone = Metal
Energy + Metal = Electricity
Electricity + Glass = Light Bulb
Electricity + Light Bulb = Light