Ripple Current Of LED's Life Be Affected?

Ripple of influence LED lifetime depends on the size and number of each line. Branch number LED the same cases, larger ripple LED lifespan shorter; ripple the same cases, branch number LED more ripple effect on LED the smaller, longer life.

For example: power supply output voltage of 12V, sharp Crest-500Mv peak, each branch LED number is 4

1, without a ripple under the condition of each LED to withstand voltage of 12 ÷ 4 tablets =3V

Each LED after 2 and superimposed ripple withstand voltage (12V ÷ 0.5V) ÷ 4 tablets =3.12V