LED lights are now being used almost anywhere in the world. Their various applications include lights on roads, to lights in houses, industries, cars and more. The word LED is an acronym for Light Emitting Diode. This diode exists in solid state and works like a tiny bulb.
LED lights might be made of one or more of such bulbs. That is the reason LED bulbs last a lot longer than any traditional bulbs. Not only do these lights last longer, they also don't consume much power.
LED lights have a disadvantage. Though they could be used for lots of purposes, currently, most of LEDs available in the market are for lights that receive supply under 12 Volts. That 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 auto. Determining how many LEDs can be linked to the 12 Volt supply could be quite difficult . LEDs are sold in packages that mention related specifications.
The info related to the 12 Volt LED lighting is the operating current, and forward voltage. How many LED bulbs can 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's another technique for connecting 12 Volt LED lights is to identify the resistance. Because of this, the forward voltage stated on the LED's package is deducted from 12 volts. Then the remainder when divided by the operating current mentioned on LED's package gives the necessary resistance in ohms for connecting the LEDs. Based on this info the particular resistors can be used. Using a a little greater resistor will be a safer option than using a a bit lower resistor.
Polarity is another significant issue while wiring LEDs. Negative legs & Positive legs of LEDs may 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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