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is it highly necessary to use resistors on leds. Answered

i want to do a small tiny project using only 3 led's with no resistor,now the led's are 3.3v,i only want to use 4.5v of battery power,but i was thinking of wiring it in parallel although that drains more battery power,any help would be highly appreciated thanks....

Tags:leds

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iceng

Best Answer 7 years ago

OMG  the resistor goes in series with the LED.
You can go here to design an LED circuit of your own.   .   .   A

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Sandeep P. Varshney

7 years ago

Yes, it is highly necessary. You can use the calculator pointed to by iceng below to get an accurate resistor value as per your need.

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Jack A Lopez

7 years ago

Resistors are necessary, and good. How else are you going to control how much current flows through your LEDs?

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aelias36

7 years ago

Pretty much. They're going to burn out really quickly unless you limit current.