As with any area in which artificial lighting is used, people like to adjust the lighting level to meet their needs and create a more comfortable environment. Allowing the occupants of an area to reduce the lighting level can help reduce glare when there is excessive lighting levels. By reducing eye strain in office or school areas occupants are more comfortable and better able to focus on the task at hand, allowing for them to be more productive.
When dimming incandescent lamps, their power consumption is also reduced, producing running cost savings. Dimming an LED will not use less power however as the dimming protocol is different. A dimmed incandescent lamp also produces less heat which will help increase their operation life and protects the investment an end-user has made. LED's do not produce the same degree of heat dimmed or otherwise.