We have this cool bulb in our basement and we always keep it on as it's perfect for getting those pesky mosquitoes. We like it too because it actually helps to have a light on in this scenario that isn't taking a dramatic amount of energy before we can turn a brighter light on.
It zaps and does exactly what we need it too. I think it has an interesting design as well, and looks welcoming down in our basement as it is lighting the way. The blue light is somehow soothing and welcoming. Great multitasker.