Let me explain something to you…The Light Jesus brings is his Word. His word is called Torah. Torah is a LIMIT on behavior and experiences.
Lucifer's light, or "knowledge" as some call it, is the knowledge one gets doing the exact OPPOSITE of what God told humans to do. It is this knowledge that God referred to when he said "DO NOT EAT OFF THAT TREE".
It is the knowledge of what is called SIN. Get you "light" straight dude.