How to improve the Chinese LED?

Question

Do it yourself

Bought a 12 LED license plate light. I sit myself, I'm not overjoyed. But my friend, either from envy, or from a pure heart, says: "Chinese diodes are not long-lived. They burn out quickly. Look for an upgrade video on the Internet." I climbed and did not google anything.
Q: my friend is right? As I understand it, the only way to upgrade is to lower the voltage on the network (well, let's hang resistance between the legs of a flashlight)?
Who can say something, advise or share links - welcome!

Answer 1

As far as I understand all this, it makes sense to monitor the voltage of the network, and I would put my own voltage regulator (taking into account the consumption, of course) on the power supply