LED lights are now being used almost anywhere. Their various applications include lights on roads, to lights in homes, industries, vehicles etc. The word LED is an acronym for Light Emitting Diode. This diode is in solid state and works like a small bulb.

LED lights might be made of one or more of such bulbs. That is the reason LED bulbs last much longer than any conventional bulbs. Not only do those lights last longer, they also don't consume much power.

LED lights do have a disadvantage. Though they could be used for many purposes, as of now, most of LEDs available are for lights that receive supply under 12 Volts. This is the reason the 12 volt LED lights deserve a special mention.

12 Volt LED lighting is good lighting. The most common use of such a lighting is in cars. Identifying how many LEDs could be linked to the 12 Volt supply could be quite tricky. LEDs are sold in packages that mention related specifications.

The info relevant to the 12 Volt LED lighting is the operating current, as well as forward voltage. How many LED bulbs could be connected in a series to the 12 volts supply is calculated by dividing 12 volts by the operating current mentioned on the package.

There is another technique for connecting 12 Volt LED lights is to identify the resistance. Because of this, the forward voltage mentioned on the LED's package is deducted from 12 volts. The remainder when divided by the operating current mentioned on LED's package provides the necessary resistance in ohms for connecting the LEDs. Based on this information the particular resistors can be used. Using a a little higher resistor would be a safer alternative than using a a bit lower resistor.

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

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