Thanks! I use a UV, but it's a bug zapper. It hangs over a stand. Luckly, the protector bars are too small for most beetles to even climb through. A few years back I did get a grapevine beetle, under the bug zapper stand, but as of now, even with new tastier lures nothing! It was just a fluke that year. What wattage of a UV bulb is recommended? Will UVA bulbs work? Is a white flood light good? I see that Hercules beetles enjoy buzzing around big white lights in parking lots.