10 Watt MR11 Low Voltage 12v Halogen Lamp, Jebao JPL1, JPL1-3, JPL1-4, JPL1-5, JPL1-6 Up to 3000 hrs useful life Base: 2-Pin, GZ4 (4 millimeters between pins) 10 Watt, 12 Volt, 30 Degree Beam Spread Shape: MR11 (1 3/8" Diameter, 1 3/8" Length) Fit for Jebao Underwater Halogen Pond Light