Why not use electric lighting. Its safer and much much more efficient especially with the latest LED technology. 10-20W of LED light will easily provide around 500-1000 Lumen, which is more than adequate to light a room and much brighter than any Paraffin lamp in an emergency. A peak load of 100W will light an entire modest home during an emergency. You've just got to figure out where you are going to get 100W of electrical power. Best to save the Paraffin for the cooking, but even then I would move away from Paraffin and go over to bottled LPG instead as a fuel source, which is easy and safer to store and more flexible to use.