[Closed] Fireball Lights

Around 15 years ago I ran Fireball lights. These were basically Lupine-style halogens with cnc housings for the batteries. I then upgraded them with some homemade Cree bulbs which replaced the halogen bulbs.

As the battery packs are still ok along with the casings, I would like to keep on using them. Sadly one of my cree bulbs burnt out and I cant be bothered to make a new one.

Does anybody have any ideas for new bulbs - perhaps LED crees which would fit in the housing? Would there be any which would deal with beam spread etc?