I just got this email from Costco. If you are a member might be worth a look. I am not certain of their size but 2@ 900 Lumen I think I'm going to check them out. I'll post but after black Friday as I go nowhere near a store during this time.
http://www.costco.com/Browse/Product...atesFlashlight

@Colleen: never seen so many lights on a bike.......in my life! You probably get a lot of motorist flashing their lights at you