hydroponics grow light

What light do plants really absorb? In the 1970s a scientist called McCree determined the wavelengths of light a plant can absorb. He assessed the relative quantum efficiency of different wavelengths of light on photosynthesis. In other words he recorded the rate of growth of plants exposed to each wavelength or colour of light. McCree discovered that plants use all parts of the PAR spectrum but at different rates. The quantum efficiency for red is close to 100% efficient whereas blue and green were less efficient, ranging from 65% to 75%. McCrees action spectrum identifies what colors of the visible spectrum are best for photosynthesis. McCrees action spectrum is the correct reference for assessing the suitability and effectiveness of a grow lights spectrum output. Blue Light Blue lights with a Kelvin color temperature from 5000K to 6500K or wavelength in the 400-500 nanometer range are best for the vegetative stage of the grow cycle and for starting seeds indoors. This color range...

The 10' x 10' grow tents will house up to 32 medium plants or about 24 or so if you want them to get bigger than normal. These monstrous grow tents will require an extra room or space in the garage to be set-up in since they are so big. The large size of this tet will require about four 1000 watt or equivalent grow lights. If you are trying to save a few bucks, you can also get by with using four 600 watt lights instead of the 1000 watt we recommend. Growing in a portable grow room allow growers to better manage heat and humidity in the growing environment, helps keep the grow space cleaner and doesn't require you to build out a room by scratch, saving you time and money. WHAT’S YOUR GROWING STYLE? SOG The sea of green (SOG) is a high-volume cultivation style favoured by commercial cannabis growers. Essentially, all the available floor space is filled up with plants. Hydro growers typically pack systems to capacity. Soil/coco growers commonly use smaller 6l square contain...