
Use only one dimmer in a 3-or-4-way circuit. The other 3-or-4-way switch(es) will turn the light on at the brightness level selected at the dimmer. Lights fade up smoothly, allowing your eyes to adjust to the new light level. Reduce the current at the moment of turning on the light, to prolong the service life of the bulbs and dimmer. Energy saving and long operating life.
Product dimensions: 4.92 x 3.19 x 1.93 inches; 2.03 Pounds.