Actually it does answer your question, coupled with the technical spec. I see nothing that indicates the light spectrum emitted by the bulb actually helps the plants grow as opposed to an ordinary light bulb. The only difference I can find between it and a simliar light bulb is the sentence, “The GE Plant Light bulb is tinted blue to highlight the natural beauty and color of your plants – so they appear healthier and greener.” (Bolding mine.)