It does No benefit at all wrong UV, although a UVB reptile light, will help increase the trichome numbers.... Caution if using these lights must use glasses or turned off while in room with plants... They are the same light people use in tanning beds as well, may cause cancer to long exposure.... But 4-6 hours on during the flowering period, helps to mimic the suns radiation, and the plants react like outside and defend themselves by forming trichomes to be protected.... When growing outdoors, you may notice that the higher the elevation a plant is grown the more potent and resin/trichomes the plants will be compared to the same strain grown in a lower elevation... even as subtle as a few hundred feet... Also the years that the sun shows lower levels of sun spots, are the years that the radiation is in more abundance for the plants....