Low voltage recessed is the standard for mid to upscale residential task lighting. Low voltage is aptly named, because there is a transformer in the fixture. This transformer converts the 120 volt household current to 12 volt. The 12 volt 50 watt bulb casts a whiter light than a regular incandescent light, and thus illuminates the counters, tile and cabinets in a better shade of light.
How does a new LED compare? This is a direct comparason between a LED can and a low voltage(not as LED with a Low voltage can)
Energy Efficiency: No-brainer here...After all, low voltage is still incandescent. At 11 watts, the LED will emit more light than a 50 watt low voltage bulb. Also, LED is a cool bulb and the low voltage bulb will heat to 300 degrees.
Color: Interestingly enough, LED is better color at 2700 degrees versus 3500 for low voltage.
Style: LED is new and limited whereas low voltage has every design option imaginable. Of course most people still prefer white, which is featured for both.
Lamp Life: 20 years for LED, 7 months for low voltage.
Price: The reason for this post...LED is actually cheaper
by about $30 per fixture