If only plants can grow, use red and blue lights. If you want a better visual effect, use a full spectrum lamp. The so-called full spectrum. LED is white light plus red light and blue light integrated into a lamp bead, which turns pink (red light is more than blue light) or pink purple (blue light is more than red light).
If it is more natural and beautiful, use UVB metal halide lamp, which is really full spectrum, including ultraviolet and infrared spectrum.