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Hydro Experts Roof Grow Tent - 1.2M x 1.2M x 1.8M | Indoor Green House Loft

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Color, Clarity, Protection Method Seven technology blends incredible color balancing for each of the standard grow lighting spectrums (HPS, Metal Halide, LED, Sun) with exceptionally high-quality lenses that provide the best in optical clarity. Additionally, Method Seven protection removes all harmful UV A/B rays like most others but additionally also removes harmful UVC rays which are filtered out of sunlight by the upper atmosphere, but pose a significant hazard under grow lighting. Many growers suffer through unne ...


Author: URBANGARDENMAGAZINE.COM  

We asked two experienced growers (Dan from Oregon and Fred from The Netherlands) to face off with their different opinions on how to calculate your fan requirements. Whose method do you think is the best? Dan's Method - Calculating By Room Volume You will find many calculations on the web for sizing a fan for venti ...


Author: Grubby cup from Maximum Yield   Date Posted: 19 December 2017  

Takeaway: Plants that use the duration of their dark periods to signal flowering are said to be subject to photoperiodism and are classified as either ‘short day’ or ‘long day’ plants . Grubbycup explains how using this knowledge allows for plant growth manipulation. In photoperiodistic plants, specialized photoreceptors ca ...