12v Low Voltage 4 Head Flexible Pendant Track Kit. Comes included with One (1) 10 Foot Fully Flexible Track, One (1) Mounting Canopy with One (1) built-in 150 Watt 12v Transformer, Four (4) Flex Track Supports, Four (4) Satin Nickel Shade Heads with White or Amber Glass Shades (see below), and Four (4) 35 Watt 12v MR16 Halogen Bulbs. Track Heads use a 12v MR16 35 Watts Max each head (140 Watts Max Total, 35w bulbs included!). See our bulbs section to order add'l bulbs. UL Listed.