Kernel density distribution of the luminosity for all matching simulations using the Ricci et al. (2010) R10-0 opacity model, for four different cases and three different snapshots, from 300kyr – 3 Myr. The black line refers to the disks from the Andrews et al. (2018b) sample. Disks with planets have higher luminosity, while smooth disks have low luminosity at 3 Myr. When two planets are included the luminosity is higher than with a single planet.