Analyze the effect of supply voltage on performance of LED as regards current, Lumen output, efficacy and life. 

1 Answer

Answer :

1) Effect on Current:- In LED current depends upon supply voltage, if voltage get changes then current also change but this change in current will be control by resistors which are connected in series. 

2) Effect on Lumen output:- If voltage is increased then brightness of LED get increased. 

3) Effect on Efficacy:- With fluctuation in supply voltage of LED, the efficacy gets decreased. 

4) Effect on Life:- If supply voltage is not stable then life of LED get reduced. 

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