Complete light deprivation curtain fabric blackout green house with high quality Light deprivation geenhouse is suitable for sensitive plants requiring photoperiod control, such as Medical plants, or seeding,vegetables, flowers, etc. 100% light deprivation ,blackout greenhouse is very popular in USA, Canada,Australia,etc. Professionally grown medical material and commercial grade cultivation and production require precise environmental control. The light deprivation greenhouse composed by hot galvanized pipe with blackout for the covering material. The frame structure is simple, cheap cost and easy to install. According to the climatic condition, it usually equiped with sidewall manual roll up units to achieve good ventilation and cooling effective