GIB Pure Bloom Xtreme HPS bulb (600 W) description

The GIB Pure Bloom Xtreme HPS bulb (600 W) provides excellent quality. The red spectrum range is maximized while the blue one is minimized - so the lamp light is specifically suited to the flowering and growing season of plants as it stimulates and increases these processes as much as possible.

* Photosynthetically Active Radiation (PAR) - electromagnetic radiation useful for photosynthesis in plants
PAR falls within similar values as the spectrum of light perceived by humans (~ 400nm-700nm), however, different segments are utilized differently within the PAR range, depending on the plant species and the stage of plant development. The most useful spectra of PAR are the blue radiation range from 400nm to 490nm and the red wavelength range from 580nm to 700nm.