light mover/track question

andy_mayfield(z6 md)March 29, 2005

I plan on lighting an area of my basement, (ie a cave with no worthwhile external light), with metal halide lights (for growing orchids). Still a little confused about using a light mover. Will the light mover let me increase the area of coverage or are they just better for uniform growth?

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A light rail in most situations is designed to simulate the movement of the sun throughout the day in the sky. Great if you want to get more planting area covered with less lights.
hope this helps.

    Bookmark   March 29, 2005 at 1:54AM
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andy_mayfield(z6 md)

any estimates in percent of the increased planting area?

    Bookmark   April 1, 2005 at 7:54PM
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With my 400 hps 2 1/2 times as much. Hope it helps.You'll have to adjust it so you don't get lanky plants on the ends or the middle ok. Good luck.

    Bookmark   April 2, 2005 at 3:16AM
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andy_mayfield(z6 md)

how much closer do you move the light to the plants?, or is this a lot of trial and error?

    Bookmark   April 2, 2005 at 12:53PM
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ya sorry for the misunderstanding on my part what I mean about lanky is that if you have the light mover set to stop on the ends to long then the plants on the ends will get taller then the ones in the middle and to tall in the middle if you have it adjusted to short of a time on the ya it is alot of trial and error for your 1 st or 2 nd go at it.the key is to have uniform growth.keep a log of temp humidity nut.this will definiltly HELP in future i did the distance fromlight to plants was have it as low as it could be with out burning them.when I noticed the first sign of burn I put a piece of tie wire from light to the top of canopy and as plants grew( wire starting to graze top of canopy) I raised the light (metal chain from mover to light with s hooks).just remember these lights will cause fires if not hung correctly so use good heavy enough hardware.ok

    Bookmark   April 2, 2005 at 11:37PM
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hairmetal4ever(Z7 MD)

Does using a light mover decrease the effect? I mean, if a high-light plant is recieving 2000 fc constantly wouldn't that be better than 2000 fc then 500 fc (when the light is 6 feet away) and back all day long?

    Bookmark   April 4, 2005 at 2:35PM
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andy_mayfield(z6 md)

2000 fc constantly definitely is better than 2000 then 500 then back to 2000.

but with the light mover and a metal halide bulb, the light can be moved closer to the plants with decreasing the chances of leaf burn. you will get spikes of fc's that will higher than 2000. so you may go to 5000 fc when the light is directly over it, but the time period of each spike in intensity may be short enough so that burn doesn't develop. then when it moves away, the fc will drop. so essentially you can make the total foot candle HOURS about the same(ie. the sum of foot candles multiplied by time),but you have a bigger area to grow things.

I hope this makes sense..I am new to this also. It's gonna be trial and error in my basement. I hope I don't kill anything.

who knows, it may even be better for the plants. its like the sun moving through the sky and the spikes in foot candles occur when the sunshine can make it through breaks in the forest's canopy

    Bookmark   April 5, 2005 at 1:15AM
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hairmetal4ever(Z7 MD)

Or like mimicking a partly cloudy day, perhaps??

    Bookmark   April 5, 2005 at 10:47AM
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