The Standard Fast Plant grew too tall for this light box and planter reaching to top. The Standard Fast Plant is advertised to reach the height of 15 cm (9.8 in). The height of the light box was 49.5 cm and the height of the planter was 20 cm. So the plant grew to 19.5 cm, not the advertised 15 cm. Since the plant grew past the light bulb, the lighting was not the most effective. So the next model of the light box, we used a variant of the plant called Petite that was advertise to reach only 7 cm, and the light bulb was raised to almost flush to the top.