For Nationstar LEDs:

Light loss: 5% at the first year, 10-15% every year after one year. 

Dead pixel rate: 0.01% within two years, 0.03% after two years.

Using life: 5-7 years in theory.

For Other LEDs:

Light loss: 7-10% at the first year, 12-19% every year after one year. 

Dead pixel rate: 0.03% within two years, 0.04% after two years.

Using life: 3-5 years in theory.

The above research showed us the math between Nationstar and other LED diodes. So you can choose the suitable LEDs according to your budget.

A final word, m-shine as an integrated LED display solution provider, could customize LED display product according to your requirements. We will try our best to provide the most suitable solutions for all customers. 

M-shine team are looking forward to any inquiry from you!