The driver is the determining factor of how dimmable a lamp or luminaire is, and in what way this should be done. For example, drivers can work with DALI, 0-10V or TRIAC (phase cut). Whenever it is possible to dim LED lights, this is always preferable. If the LED can be dimmed by 30%, it can increase savings by 30%, as well as extend the lifespan of the light. Dimming can be done manually, for example, with integrated dimmers, or automatically with a system such as DALI. A DALI system automatically adjusts the dim level of illumination based on the amount of daylight in a room. This is done by placing a sensor with a control device in the room. This additional cost is usually returned within a very short time based on energy savings.