The rollers and lights are used to lure and capture mosquitoes, and the mosquito corpses are converted into electricity to provide lighting for reading.
The drum and light are used to lure mosquitoes and capture them. The mosquito carcass is converted into electrical energy to provide lighting for reading.
The rollers and lights are used to lure mosquitoes and catch them, and the mosquito carcasses are converted into electric energy to provide the lighting needed for reading.