The V-Pro Series were primarily designed for Dimmable LED’s, the dimmers, with a minimum load of only 10 Watts, can operate at least 1-20 good quality Dimmable LED’s. The V-Pro Series Dimmers can also be used for Mains Voltage Lighting, Trailing Edge Loads, and Electronic Low Voltage Transformers. When using Electronic Low Voltage transformers we recommend that a maximum of 5 good quality dimmable electronic transformers are used (10 if Varilight) with this Dimmer range. Please note: add the watts of the bulbs/lamps if using Varilight Transformers, to determine which dimmer to select, but if using another manufacturer of transformer, add up the VA of the transformers so it does not exceed the maximum of the dimmer. · · · V-Pro intelligent dimming technology · · Soft start feature · · Intelligent overload protection · · Adjustable minimum brightness setting · · A choice of driving modes · · Durable white plastic