The benefits of LED landscape lighting are many, but one of the most important is the ease of installation. A true LED light fixture is driven by a microprocessor that automatically controls the voltage going to the LEDs. It's nearly impossible to run too much or to little voltage to the fixture and ruin it which would happen with a typical incandescent fixture. Since the chip in the fixture automatically corrects the voltage (right around 11 watts) installation is much easier. You don't need to worry about using the correct voltage tap on the transformer. Just connect all your runs to the 15 volt tap and you'll be in good shape!
This makes wiring low voltage LED landscape lighting systems much easier to the point that most homeowners can tackle installing a nice system in a weekend. Just be sure to use direct burial splices (filled with electro-gel) and be sure to use no smaller than 12 gauge cable. If you use 14 gauge or higher you risk shorting out the wire instead of tripping the breaker in the transformer....but more about that later. Installing LED landscape lighting has become much easier because of the amount of technology that goes into these fixtures. Since the microprocessor corrects the voltage you don't need to worry about all the complicated calculations a typical system requires. But remember, MR-16 retrofit bulbs don't count; they can still burn out! -Mike
You don't need to worry about using the correct voltage tap on the transformer. Just connect all your runs to the 15 volt tap and you'll be in good shape!
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