Before selecting a dimmer switch for your LEDs or compact fluorescents, you need to make sure you have the proper type of bulb available, there are several choices, a-style, decorative, reflectors and MR16. R20, R30 and R40, spiral shape. However, different leds require different technology, you should purchase dimmers that state they with the compatibility with your bulbs. Secondly checking the load rating, for example, if your fixture has 10* 30-watt bulbs, you need a dimmer with a 300-watt max, but if your fixture only has 5* 30 watt bulbs, a 150-watt max switch will be enough. Best way that do not purchase a dimmer higher than about 25% of the rated loading.

Determine if your light fixture uses line or low voltage. If your track and rail lights were installed with line voltage and incandescent bulbs, select a line-voltage dimmer. There are two types of dimmers for low voltage, magnetic dimmer and electronic dimmer.

Normally, there are three styles for dimmer switch: single pole, 3-way and multi-location . Single poles are designed for light fixtures that only have one switch. and light has several switches but dimming is only needed on one switch, 3-way will be used. If you would like to dim the lights from all locations, use a multi-location dimmer. There are also available with tap screens and wireless feature dimmers on options.