Setting up grow lights in hydroponic because most plants require light to carry out photosynthesis, a process that enables plants to make their own food. For an outdoor garden, plants get their light quota from natural light sources like sunlight. However, in the case of an indoor garden, an artificial light source has to be provided. The best way of providing light in this case is to use grow lights.
These grow lights emit light in the same electromagnetic spectrum or wavelength as that emitted by sunlight.
Now compare to above what exactly grow lights used for except above points and how are grow lights used with types of grow lights?..
These grow lights emit light in the same electromagnetic spectrum or wavelength as that emitted by sunlight.
Now compare to above what exactly grow lights used for except above points and how are grow lights used with types of grow lights?..
lol.....we all have grow lights. 
....its the spectrum and wavelength color pattern of the light that the plants use to photosythisize (sp?)
i have seen your budz and they are more like elephant dick size 
LOL
