LED lights are now being used virtually everywhere. Their varied uses include lights on roads, to lights in houses, industries, vehicles and so on. The word LED is an acronym for Light Emitting Diode. This diode exists in solid state and functions just like a small bulb.

LED lights may be made of one or more of such bulbs. That's the reason LED bulbs last a lot longer than any standard bulbs. Not just do these lights last longer, they also do not use up much power.

LED lights do have a drawback. Although they could be used for lots of purposes, today, majority of LEDs available in the market are for lights that receive supply below 12 Volts. This is the reason the 12 volt LED lights deserve a special mention.

12 Volt LED lighting is powerful lighting. The commonest use of such a lighting is in auto. Identifying the number of LEDs can be linked to the 12 Volt supply can be very tricky. LEDs are sold in packages that mention relevant specs.

The info related to the 12 Volt LED lighting is the operating current, along with forward voltage. The number of LED bulbs can be connected in a series to the 12 volts supply is determined by dividing 12 volts by the operating current stated on the package.

There is another way for connecting 12 Volt LED lights is to determine the resistance. Because of this, the forward voltage stated on the LED's package is deducted from 12 volts. The remainder when divided by the operating current stated on LED's package gives the required resistance in ohms for connecting the LEDs. According to this information the specific resistors could be used. Using a a little greater resistor would be a more secured option than using a somewhat lower resistor.

Polarity is another critical factor while wiring LEDs. Negative legs and Positive legs of LEDs might be of different lengths. LED's package will denote the polarity. The resistor needs to be wired in series on the positive leg to the LEDs.

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