The formula to calculate nits (N) from lumens (L) is:
\[ N = \frac{L}{3.426} \]
Where:
Let's say the total lumens (L) is 500. Using the formula:
\[ N = \frac{500}{3.426} \]
We get:
\[ N \approx 145.98 \]
So, the brightness is approximately 145.98 nits.