The Mirror Enigma

saycheese said:

actually i did mix up you with another fine chap on grasscity who said roughly the same thing but with different wording. i connected you both as it sounds like you said mirrors reflect images and that is separate from the amount of light. but still the fact is that images ARE light and whether or not mirrors cut down light is not the exact question posed. i absolutely understand mirrors or anything for that matter will affect the intensity or perhaps wavelength but the exact question I posed was are mirrors getting a bad rap for the wrong reasons and are they more reflective than mylar or white paint?

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Todd P said:

ive seen a grow room that had the light hood mounted facing up and shining into two mirrors set up in a V shape that reflected down on the plants and the light could be used on both sides. as far as the plants could tell...there was two lights!! i saw the setup and the increase in yeild. so mirrors are great if used right!!!!!

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Brick Top said:

The deal with using mirrors as a reflective material that I never seem to see mentioned is how mirrors actually work. Light rays would pass through a layer of glass and then strike the reflective material and then pass back through the layer of glass again. Each pass through a layer of glass restricts some light rays and what happens is what is reflected back has lost about 10% of the usable light rays plants need.

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