MR16, GU5.3 Base, 20 super bright LEDs, LED Spotlights replacement ... bulb will last about 50,000hours Designed to fit standard MR16 fittings Just plug it into your 12volt AC fixture and ... start to save on power consumptionBulb base type: MR16 21 LEDS Diameter: 50MM Life time: 50,000hours Power: 1 ... Angle: 20° Luminescence: 21 x 16.000mcd Operating voltage: 12V MR16 LED lamp