Jimmy Posted February 15, 2012 Share Posted February 15, 2012 Green LED light for work in dark period!I want to know more about it. Is it 100% safe? PeaceJimmy Link to comment Share on other sites More sharing options...
Dust Posted February 15, 2012 Share Posted February 15, 2012 don't know about green LED but i know there are special green bulbs for working during night time.On this link there are some T5 green seem okhttp://www.growlightexpress.com/fluorescent-bulbs-30/sylvania-green-4-t5-ho-fluorescent-lamp-321.htmlThere a topic about the green light it seems http://www.marijuanagrowing.eu/using-green-light-spectrum-you-can-see-plants-cant-t40333.htmli almost bought one someday, but figured i didn't need to see my girls at night finally ^^good luck Link to comment Share on other sites More sharing options...
Nutes Posted February 16, 2012 Share Posted February 16, 2012 yeah i always been told its green lights not green l.e.d jimmy mate,and best not to disturb em i say, not worth the risk Link to comment Share on other sites More sharing options...
SuperSilverHaze78 Posted February 16, 2012 Share Posted February 16, 2012 I use them when needed to check on temps and humidity and you seen my plants. Link to comment Share on other sites More sharing options...
SuperSilverHaze78 Posted February 16, 2012 Share Posted February 16, 2012 http://www.ebay.com/itm/CAP-NIGHT-LIGHT-GREEN-EYE-LED-VIEW-PLANTS-NIGHTTIME-/230549509006?pt=LH_DefaultDomain_0&hash=item35add2538e Link to comment Share on other sites More sharing options...
Jimmy Posted February 16, 2012 Author Share Posted February 16, 2012 Fuzzy told me that green led is the way!! Im gonna start to work nights so the only time i can check my grow room is on night time!!PeaceJimmy Link to comment Share on other sites More sharing options...
Dust Posted February 16, 2012 Share Posted February 16, 2012 Nice link fuzzy boy I think a green bulb in a room looks pretty looool i like green ambiance but still wouldn't put it lol, but true in your case jimmy if you come home only at night it will be usefull, everyone want to see his plants ^^or change your light time ^^ Link to comment Share on other sites More sharing options...
SuperSilverHaze78 Posted February 16, 2012 Share Posted February 16, 2012 Link to comment Share on other sites More sharing options...
Jimmy Posted February 16, 2012 Author Share Posted February 16, 2012 Cool reading Fuzzy! And thanks in general for the support guys. Dust it´s hard to changs the time cyckel now! !!!!PeaceJimmy Link to comment Share on other sites More sharing options...
Dust Posted February 17, 2012 Share Posted February 17, 2012 i think you can if you move one hour per day ^^But green light will be easier lol ^^Good luck Link to comment Share on other sites More sharing options...
Jimmy Posted February 18, 2012 Author Share Posted February 18, 2012 lol DustNo I stick to the Green LED light this time! Link to comment Share on other sites More sharing options...
scorro Posted February 18, 2012 Share Posted February 18, 2012 Its really not affecting your plants light cycle. I have a green led in the EC technics digital fan controller and it lids the whole grow room green during the night. This is the 3rd grow with this led and it works perfect.Peace Link to comment Share on other sites More sharing options...
DanMacGrowesalot Posted February 21, 2012 Share Posted February 21, 2012 Here's an idea I would use: Cover your LED with a fresh leaf or two, and use the light that passes through to see. The leaves will be alive for a while and are guaranteed to absorb photosynthetically active radiation thoroughly. In the same way that a light that appears white carries a multitude of spectra and a seemingly orange hps has output in the green, blue, violet, ect, your green light could carry PAR wavelenghts. On a good note, LEDs are know for having a very little deviation from the intended output wavelength, so they are a better choice for knowing that your green is "actually green." I have taken the lens off of my flashlight, covered the lamp with layers of green leaves, and screwed the lens back over them. I am always confident that this method works; even more so with green through green leaf. Link to comment Share on other sites More sharing options...
Dust Posted February 21, 2012 Share Posted February 21, 2012 nice tip ^^ Link to comment Share on other sites More sharing options...
lamsbread Posted February 22, 2012 Share Posted February 22, 2012 Hey jimmyThe reason why plants look green is because they reflect that part of the spectrum and absorb the other parts of the spectrum especially red and blue which are the major player when it comes to photo synthesis. When it comes to photoperiod , this controlled by light absobed by the plant which also includes the ultraviolet wave lengths. There are hormones in the plant that are constanly being produced.These hormones are destroyed by light but when they are allowed (by us in 12/12 lighting) or are able to (equinox/nature) reach a certain concentration they trigger the flowering response.As we all know this is around 12 hours darkness or in the natural world "the fall/autumn".As green light is reflected by the leaves, using a green light does not pose a problem as long as a good green filter is used or using spectrum targeted/specific light sources such as Green LED's.The only time a problem could arise is when using a very bright light source with a poor green filter, as other wave lengths could pass through.If you do use a green light source always make sure the lights have been turned off in the room you are in before entering the grow space.Try to make the visit to your grow space as brief as possible and when ever possible don't disturb your grow space in the dark period.As for checking temps during the dark period, there are thermometer/hygrometers (temp/humidity) which have indoor out door sensors. These are quite cheap and mean that you do not need to disturb your plants dark period. There are also thermometers with remote sensor units, which again are affordable.You can be sitting in another room a still keep an eye on temps.The thing to remember is cannabis photoperiod in due to the absence of light over a certain time period (12 hours) a very bright green light can still affect this, though if you use a fairly dim light source there should be no problem.In nature cannabis plants are exposed to moonlight, the moon can at times (full moon) reflect upto 1/8 off the sun rays but has relitively little effect on photoperiod.Though street lighting near outdoor plants can pose a problem as this light source is closer to the plants and does not wax or wane and is never obscured by cloud. Though having said this it is still best to completely avoid letting light reach our plants in thier dark period, better to be safe than sorry.So go ahead get you LED head torch but use it as little as possible.Here is something i found online and is copied and pasted from http://ag.arizona.ed...ironmental.html Light has three principal characteristics that affect plant growth: quantity, quality, and duration.Light quantity refers to the intensity or concentration of sunlight and varies with the season of the year.The maximum is present in the summer and the minimum in winter. The more sunlight a plant receives (up to a point), the better capacity it has to produce plant food through photosynthesis. As the sunlight quantity decreases the photosynthetic process decreases. Light quantity can be decreased in a garden or greenhouse by using shade-cloth or shading paint above the plants. It can be increased by surrounding plants with white or reflective material or supplemental lights. Light quality refers to the color or wavelength reaching the plant surface. Sunlight can be broken up by a prism into respective colors of red, orange, yellow, green, blue, indigo, and violet. On a rainy day, raindrops act as tiny prisms and break the sunlight into these colors producing a rainbow. Red and blue light have the greatest effect on plant growth. Green light is least effective to plants as most plants reflect green light and absorb very little. It is this reflected light that makes them appear green. Blue light is primarily responsible for vegetative growth or leaf growth. Red light when combined with blue light, encourages flowering in plants. Fluorescent or cool-white light is high in the blue range of light quality and is used to encourage leafy growth. These lights are excellent for starting seedlings. Incandescent light is high in the red or orange range but generally produces too much heat to be a valuable light source. Fluorescent "grow" lights have a mixture of red and blue colors that attempts to imitate sunlight as closely as possible. They are costly and generally not of any greater value than regular fluorescent lights. Light duration or photoperiod refers to the amount of time that a plant is exposed to sunlight. When the concept of photoperiod was first recognized it was thought that the length of periods of light triggered flowering. The various categories of response were named according to the light length (i.e., short-day and long-day). It was then discovered that it is not the length of the light period but the length of uninterrupted dark periods that is critical to floral development. The ability of many plants to flower is controlled by photoperiod. Plants can be classified into three categories, depending upon their flowering response to the duration of darkness. These are short-day, long-day, or day-neutral plants. Short-day, (long nights) plants form their flowers only when the day length is less than about 12 hours in duration. Short-day plants include many spring and fall flowering plants such as chrysanthemum and poinsettia. Long-day, (short nights) plants form flowers only when day lengths exceed 12 hours. They include almost all of the summer-flowering plants, as well as many vegetables including beet, radish, lettuce, spinach, and potato. Day-neutral plants form flowers regardless of day length. Some plants do not really fit into any category but may be responsive to combinations of day lengths. The petunia will flower regardless of day length, but flowers earlier and more profusely under long daylight. Since chrysanthemums flower under the short-day conditions of spring or fall the method for manipulating the plant into experiencing short days is very simple. If long days are predominant, a black plastic sheet is drawn over the chrysanthemum for 12 hours daily to block out light until flower buds are initiated. To bring a long-day plant into flower when sunlight is not present longer than 12 hours artificial light is added until flower buds are initiated. Peace bro Lams Link to comment Share on other sites More sharing options...
Dust Posted February 22, 2012 Share Posted February 22, 2012 very complete as usual Link to comment Share on other sites More sharing options...
ep08 Posted October 20, 2012 Share Posted October 20, 2012 I`ve found this at urban grower:http://www.youtube.com/watch?v=WqXpMYZ2a3E&feature=plcpthe green hornet led light Link to comment Share on other sites More sharing options...
ep08 Posted October 21, 2012 Share Posted October 21, 2012 yes, he is so relaxed. I`ve read how he got his job for advanced nutrients....funny story. he just `ran` into the office, told them who he is and waht he wants to do in life..and they took him on. Seems to me like a man walking in his dreams...and fullfilling them with a big puff pufff puffff ^^ Link to comment Share on other sites More sharing options...
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