This LED-based pond light set comes complete and ready to install with a very small outdoor transformer. 

These lights create a warm, serene atmosphere and can be combined with existing halogen lights without a jarring effect.The LED bulbs in LunAqua Classic also have exceptional life expectancy compared to classic halogen bulbs and many LED fixtures.
Light Output: 90 lumen (3x30)Beam Angle: 30°
Power Cable Length: 7 ft. (per light)
Power Consumption: 3W (1W x 3)
Power Requirement: 12V AC/DC (110V / 60Hz for transformer)
Dimensions (Dia x L): 3 x 4.5 in.
Limited Warranty: 2 Years