ELV stands for Electronic Low Voltage. An ELV dimmer is known by a number of names. ELV dimmers are also called simply “electronic dimmers”, as well as “trailing edge dimmers”. These names come from the way in which this dimmer transitions your LED’s luminosity.
An Electronic Low Voltage (ELV) dimmer used in conjunction with an LED (light emitting diode) is almost a match made in heaven. LEDs in general are known for their energy-saving properties. They have a higher cost because of this, but most LED lights come with a warranty of some caliber. Usually LED power supplies have a three-year warranty, while the lights themselves can have five or more years under their belt in that category.