China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

Generally speaking, look at the effect you want, usually every 8 square put a sodium lamp 600W and a high pressure sodium ballast, but only adjusted flowering, if long-term open as tropical plants fill light, with an estimated reduced to about 6.
First, the temperature must be controlled then is photosynthesis points charcoal plus the amount of carbon dioxide during the day you can promote or fertilization when the green manure (that is, with some of the more nutritious plant leaves or neck as fermentation can increase the temperature can also increase the amount of carbon dioxide) plant growth is the residue of photosynthesis conditions water + carbon dioxide + light = production plants as long as they do not freeze to death on the night temperature difference of day and night have a jacket like not too high high translucent plastic film during the day is very important to be a good light transmission!