i been told that inferred light will help with thc production when used in the last 2 weeks of flowering ? i found an old 150w inferred light (the kind poeple used as a tanning aid in the 80s).anybody used anything like this on there plants ?

anybody give any input ???

i dont know about inc the thc levels, but i do know whatever the fuck it puts out, the type of light, makes plants grow soooooooooooooooooooooo fast vertically..


once i plant my seedlings in the soil i put a 100w infared bulb next to them and keep em 80 degrees, and within 2-3 days they are up and stretching sooooo dam far..

i have a suspicion that the infared light does put off a shitload of red light or some shit and it makes the plants go bonkers...


i will try this the last 2 weeks of flower.. but the bad thing is it puts of enormous amounts of heat..

thanks for your in put awry...i think i will give it a go on may be just one plant in the last 2 weeks see how it goes,your right about the heat to,thou i should be able to manage this.does any body know more about the effects of infrared lights on plants ?

Infrared isn't used by plants for food, phytochromes sense infrared and trigger the plants grow phase assuming that the presence of infrared means the lights are on or sun is up, and the opposite when infrared is not present, telling the plant the lights are off or sun has set.

would i get any extra or faster growth if i added an infrared light to my clf veg room?

Plants use mostly light from the blue spectrum around 430-480nm and the red visible spectrum at around 660nm - 700nm, called photosynthesis. Chlorophyll in weed is seen as that green stuff in the leaves and is where the light absorbing takes place. The absorbing parts of the leaf that convert light to energy have the ability to absorb those ranges of light and nothing else. There are other parts of the plant that recognise infrared light and UV light but they are not associated with light to energy.

Infrared light/radiation ranges from 750 to 2500 nm so it is reflected off the plant leaves. In fact there is one status where a plant will begin to absorb infrared and that is when it is in stress. When stressed it will begin to reflect the blue and red spectrum of light and absorb infrared.

This is how satelites are able to image the health of plants from above.

The only thing it seems that plants use infrared for is as a trigger for chemical reactions like the chemical reaction to tell the plant the sun is coming up or going down, which acts as a kind of sensor or switch to turn off and on the process of photosynthesis.

thanx for the info mate greatly appreciated rep rep rep for yoo lol

Heres a diagram that shows the spectra of various pigments.. The total absorbtion of a plant will depend on the various levels of pigments.. Too bad it apparently doesn't show the spectrum for the compound(s) responsible for what Jonus was saying..

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Well it does in a kinda opposite sense. All absorbtion drops to nil after 700nm, infrared starts at about 750nm.

The chemical in plants called phytochrome signals the plants based on the balance of red and infrared light. When there is more red than infrared then the plant assumes the lights are on. But around sundown there is more infrared than red so the plant assumings its heading to night cycle via chemical releases.

The reason people are getting stem stretch using infrared spotlights either as lamps in with their grow lamps or attached to cameras with infrared sensitive lenses is as mentioned above and is the same reason why plants stretch like shit under normal incandescent light.

If there is more infrared light hitting your plants than red light, as is the case if you are using a metal halide which is mostly blue light spectrum or a 14000 kelvin CFL which is all blue along with an infrared spotlight, or, an incandescent light which is mostly infrared, then the infrared spotlight or incandescent light can in some cases fool the plant into thinking the lights are still off or that the plant is in the shade, and over a period of days it may stretch to try and find light even though it is surrounded by it much like lower branches stretch out of the shade to find light.

The other thing to watch out for if youre using infrared lighting in with your vegging stage is that it may also trigger early flowering.