With a motion sensor dimmer switch, when a person gets up during the night, lights can be set to automatically turn on as they move about the house, but at a lower setting (20% of their maximum brightness, for example). Additionally, some smart dimmers can be set up on night mode. Conversely, a smart dimmer timer switch can coax a person to sleep by gradually decreasing the level of light until the room is dark. For example, a smart dimmer timer switch can automatically adjust the lighting in a bedroom, allowing a person to wake up slowly as light intensity increases. Lighting levels can also be adjusted depending on the time of day. Conversely, when reading, the lights need to be turned up since dim lighting can cause eye strain. When snuggled up under a blanket to watch a movie, for example, lighting that's too bright can feel harsh and create major distractions (like screen glare), making the experience downright unpleasant. Of course, different activities will require different levels of light. The appropriate level of lighting goes a long way towards creating a relaxed and happy mood. Perhaps one of the most important functions of dimmer light switches is their ability to instantly transform the ambiance of any room in a house. Turning up the light intensity is referred to as a "fade up", while turning down the brightness is called a "fade down". In the professional lighting industry, changes in light intensity are called "fades". When it’s turned up, the on/off cycle happens more quickly, causing the light to burn brighter. When the dimmer is turned down, this cycle takes longer to complete, causing the light to emit a lower level of brightness. Each time this happens, electricity is diverted from the light bulb. Modern dimmers work by taking the electricity flowing through a light’s circuit and rapidly switching it on and off, approximately 120 times per second. In simple terms, a basic dimmer light switch works by reducing the amount of electricity flowing through a circuit which, in turn, reduces the brightness of a light. Dimmer switches can be connected to a smart home, giving it the ability to adjust the lights automatically at certain times of the day through the use of special apps. Simple dimmers tend to be controlled manually, although smart control systems are becoming more and more popular. Many homeowners have dimmers installed throughout their living spaces to add ambiance, save money on their electric bills and extend the life of their bulbs. A dimmer light switch is a device that's wired to a light fixture and is used to adjust the level of light in a room.
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