This ultra bright 21-LEDs MR 16 Spotlight Bulb can be plugged into your 12 volt halogen fixture.Run it for twelve hours a day for a whole year at a cost of about 80 cents. This LED light bulb should last about 10 years.

LED bulbs are compatible with all types of magnetic transformers but not all electronic transformers. Many electronic transformers require a minimum load which is greater than that provided by LED bulbs. LED bulbs will usually not work properly (no light output, flickering, strobing) in fixtures that have integral electronic transformers in each fixture.

In addition, many standard Track Light power supplies will produce voltages as high as 16 with little or no load (LED bulbs provide little load). You must make sure that the voltage of your existing power supply does not exceed 14 Volts with the LED bulbs installed.

• MR16 21 LED GX 5.3 Base
• Bulb Life - 30,000 Hours
• View Angle - 15 Deg
• Operating Voltage - 12 V AC / DC
• Consumption - 1.5 Watt