How many paper lanterns should I use to light a wedding reception hall?

I want to use paper lanterns at my wedding reception. I rented a hall that has ugly florescent panel lighting (like cafeteria lighting). Ideally, I don’t want to have to use the panel lighting at all, but don’t have any clue how much light paper lanterns actually give off and how many I would need to order to have sufficient lighting for pictures, etc. PLEASE HELP?