Many people tend to forget to turn off their lights in their household, which causes a lot of energy to be used. My partner and I thought of creating a motion/light sensor to prevent the use of too much energy. When the device senses any kind of movement, or a change in brightness around it, the lights will automatically be turned on. Once the motion or brightness is back to normal, the lights will turn off, unless you put it on lock. You can also decide how long you want the light to stay on, for example, 5 mins or 10 mins.