And, yes, fewer insects. This is a summary of a study out of the University Of Georgia Department Of Entomology:
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In short, the research indicates that since insects are attracted to UV light, and Cree LEDs emit little or no power in the UV spectrum insects just aren’t interested and a less interested bug means fewer bugs present where Cree LED’S are used, period. The article states, “Color sensitivity in the UV spectrum plays an important role in foraging, navigation, and mate selection in both flying and terrestrial invertebrate animals. This attraction to UV light has made insects a useful model for understanding visual sensitivity to UV light. Cree LEDs emit little or no power in the UV spectrum. Incandescent, fluorescent, and metal halide sources emit a substantial amount of UV radiation, thus it is likely that bugs are less attracted to fixtures utilizing Cree LEDs.”
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You can read the study here:
http://www.cree.com/~/media/Files/Cr...ndLEDLight.pdf
DISCLAIMER: I have no financial relationship with Cree, I'm just a fan.