PHILIPS Cermalux Alto - HPS - 1000W Spigot Custom Features:

Custom Features:

and break down dead organic material in your root zone

PPM settings for tomatoes

When used in combination with your preferred plant food

Point to point air movement and filtration

PHILIPS Cermalux Alto - HPS - 1000W Spigot Custom Features:High Pressure Sodium grow lights emit the yellow and red regions of the spectrum. HPS bulbs help stimulate flower and fruit production in plants more efficiently than other grow light sources. HPS grow lights have a good spectral distribution however, it is best to use HPS Grow Lights in addition to or cycled with, Metal Halide (MH) Grow Lights ET 25 bulb with a Mogul (E39) base Gives a warm white light