Utilizing solid-state technology, the vPRO 2 is a low profile, light weight, stainless steel power supply. A proprietary, downloadable app allows the vPRO 2 to be controlled by any Bluetooth® enabled device with an extended 2.4GHZ external Bluetooth® signal antenna. Multi-stage dimming of all loads, regardless of light source: LED, halogen or lamp brand. Dimming is smooth: from full bright to 0% without stepping.