There are quite a few reasons. Dimming alone greatly reduces energy consumption
and may pay for itself through energy savings not to mention extending
bulb life 10 times or more.
Lighting systems that combine occupant sensing can also turn lights on as someone enters a room and then off
when they leave saving energy from leaving lights on when not needed.
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The Inverse Square Law is a formula stating that if you double the distance from the light source, the light level goes down by a factor of 4, if you triple the distance, it goes down by a factor of 9, and so on. The lines represent the flux emanating from the source. The total number of flux lines depends on the strength of the source and is constant with increasing distance. A greater density of flux lines (lines per unit area) means a stronger field. The density of flux lines is inversely ...
During normal operation, dimmers do get warm to the touch. A wallbox dimmer's efficiency is typically around 99%. The other 1% is dissipated in the dimmer as heat. So a dimmer on a 600 W load would produce around 6 watts of heat. This is on the order of a small night light.
Dimmers takes advantage of controlling your home’s
lighting fixtures in the same basic way a standard switch might. Some
systems use a dimmer panel, while others use smart dimmers that
directly replace your wall switch.
These systems are designed to install in new construction and / or
existing homes. Some systems use a dedicated wire to send lighting
commands, while others make use of the existing wire within your home.
Most systems easily interface with structured wi...