The formula to calculate the Total Light Hours (T) is:
\[ T = H \times D \]
Where:
Let's say the hours per day (H) is 8 and the number of days (D) is 30. Using the formula:
\[ T = 8 \times 30 = 240 \, \text{hours} \]
So, the total light hours (T) is 240 hours.