Let It Glow 2 is a physics-based game in which you have to illuminate light bulbs. A simple flick of a switch won't turn on these lights, so you'll need to rely on your knowledge of physics to get the job done. Get rid of wooden objects to move transmitters and batteries that will transfer energy from the power source to each light bulb. Transmitters must be connected to the power source to transfer energy to the bulb, while batteries can be charged and transfer energy independently. The dotted circle around each item shows how close it needs to be to another item in order to transfer energy.