Sunshine Systems GS15B GrowSpot Vigorous Veg LED Grow Light Bulb Use with your current mh or hps lamp to dramatically increase your yield Vigorous veg growspot emits blue light that enhances the vegetative life-cycle Does not contain harmful metals or gasses like fluorsescent, hps and halide bulbs Use with your current mh or hps lamp to dramatically increase your yield Vigorous veg growspot emits blue light that enhances the vegetative life-cycle Does not contain harmful metals or gasses like fluorsescent, hps and halide bulbs GrowSpot LED grow light uses only 12 watts of power No infared or uv light making them perfectly safe for the home or classroom