The SHP-T 250 Gro lamp Provides rich energy from the blue and red sections of the visible spectrum, generating the light that activates vital chlorophyll synthesis and photosynthesis. This process enables plant growers to give their plants the appropriate doses of artificial light needed for healthy growth. The Sylvania SHP-T 250 Gro Lamp can help produce beautiful plants and flowers all year round to precise schedules with abundant blossoms and generous harvests.