Hydro Crunch 400-Watt High Pressure Sodium Replacement HID HPS Grow Light Bulb

Hydro Crunch HPS (High Pressure Sodium) Grow lights have an effective spectral distribution for your plant's flowering stage. High Pressure Sodium light helps stimulate flower and fruit production in plants more efficiently than other light sources designed for growing plants. It is best to use HPS Grow Lights for the fruiting and flowering phase of plant growth or in a 4:1 ratio of HPS to MH for best results.