I'm not sure of the wattage - not very high. Mitch, my friend, bought them from e-bay or amazon. There are a number of them on one 15amp circuit. I think he bought eight total. We were thinking two would be nice on a skeet field. We have two skeet, four trap, and one 5-stand, all under lights. On Tuesdays we shoot till 9PM, so there's a bunch of night shooting. But Friday we do the black lights on 5-stand. Another local club run by Pat Lietzke charges $30 and you have to sign up a week ahead of time to shoot. We'll only be charging $10 for non members. One of our problems is we have to quit shooting by 9 PM from a law suit 30 years ago. If it gets too popular we may have to do it on Saturday night also. I think there's at least one video on u tube showing it. It's called "glowing clays." Our new truck load of clays will be here Nov 14th and I ordered 6 pallets of green birds. We should be all set.