You go to speak to Astarion but he immediately starts SCREAMING at you...

"WHAT IN THE SWEET HELLS WERE YOU THINKING , ACTIVATING THAT LANCE!? I WAS RIGHT. THERE." He yells

"GODS!! Do you have any idea how much that hurt!?" He glares at you

"I thought the mind flayer parasite protects you from the light?" You say in a confused tone

"Well , apparently theres a limit. Somewhere between a nice summer's day and the FULL , CONCENTRATED POWER OF THE SUN!!!" He scoffs