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LED grow lights use very low power and are usually engineered to produce monochromatic light matching the highest absorption wavelengths of plant photosynthetic reactions. This design optimizes photosynthesis for a given quantity of input power, as opposed to fluorescent lights which only provide a
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Compact fluorescent lamps are less efficient than LED or HID lamps, but run relatively cool and are widely available in simple fixtures and therefore continue to be used. Traditional fluorescent lamps generally do not produce enough concentrated light to be a primary light source for most indoor
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Light is the essential "plant food"; everything else provided in cultivating a plant serves the purpose of helping it absorb and use the light. As the plant grows larger, it requires an increasing amount of light. There is no substitute for light: if the amount of light received by the plant is
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input, but are not yet as widely used. Continuing improvements in lifetime cost per lumen, long life power supplies, and banked or multi-LED fixtures are making LED lights more suitable for large-scale plant lighting.
137:) or growth chamber is a room of any size where plants are grown under controlled conditions. The reasons for utilizing a growroom are countless. Some seek to avoid the criminal repercussions of growing illicit
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portion of the desirable spectrum or incandescent and gas-discharge bulbs which also produce only a portion of the optimal wavelengths and, in addition, waste significant energy in the form of heat.
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growing operations. Fluorescent and compact fluorescent lamps are excellent light sources for young plants (seedlings). They are also used to supplement the light generated by primary HID lamps.
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Growers respond to the use of thermal imaging cameras by isolating and decoupling rooms physically from the outer walls of buildings, and directing ventilation exhaust into a chimney.
239:(lux = lumens / area illuminated in square metres). For indoor use, higher lighting efficiency produces more lumens per unit of area with less power and less waste heat.
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For indoor gardening, one of the most important requirements is the amount of light energy striking the surface of the plant ("incident light"), which can be measured in
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lamps, grow rooms will often become excessively hot relative to the temperature range ideal for plant growth, often necessitating the use of a supplemental ventilation
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As a controlled environment, grow rooms offer many advantages over outdoor alternatives. However, without adequate ventilation, the plants may consume resources, like
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is illegal in many countries, and thus some choose to grow marijuana indoors in an attempt to conceal their activities.
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are common components in soilless mixes for indoor cultivation.
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388:"The light fantastic: Indoor farming may be taking root"
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Room for growing plants under controlled conditions
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338:Dark photosynthesis
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41:Please help
36:verification
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343:Hydroponics
270:Ventilation
179:Vermiculite
171:hydroponics
143:grow lights
394:2014-05-16
374:References
333:Aeroponics
175:aeroponics
69:newspapers
58:"Growroom"
358:Grow shop
348:Fogponics
296:marijuana
251:efficient
139:cultivars
135:grow room
409:Category
353:Grow box
327:See also
312:cameras/
197:Lighting
191:rockwool
147:sunlight
131:growroom
183:perlite
83:scholar
276:oxygen
173:, and
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