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Post by krizz on Sept 21, 2017 17:40:07 GMT -5
Thinking of making something like this. youtu.be/bIOKLJJ2BEoAre there certain amount of lumens needed for either seedlings vs plants?
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Post by lloyd on Sept 21, 2017 17:45:52 GMT -5
The easiest is to use T5HO fixtures. LED's are more efficient and cooler. Metal halide are super bright but hot.
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Post by krizz on Sept 21, 2017 18:25:28 GMT -5
The easiest is to use T5HO fixtures. LED's are more efficient and cooler. Metal halide are super bright but hot. Well I plan on using led light bulbs that are 1600 lumen each. Not the ones that guy is using in his videos. I would get t5ho if isn't it wasn't so over priced.
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Post by lloyd on Sept 21, 2017 19:31:17 GMT -5
T5HO are quite reasonable, probably the cheapest. If you search the forum and the net you can get very reasonable fixtures and bulbs.
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Post by nimbulan on Sept 22, 2017 11:06:13 GMT -5
T5's are actually quite cheap for how much light they output, especially with the larger fixtures. The power efficiency isn't great though, so they output a significant amount of heat (CFLs output even more.) I use DIY LED light bars for my plants as shown in this guide: orchidborealis.blogspot.com/2016/11/samsung-linear-led-module-h-series-gen-3.html They're close to twice as efficient as T5 bulbs and take 10x as long to fade, though it is a fair amount of work to set up. With a recent price drop on the 2' strips I think the setup cost is comparable to T5 fixtures though.
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Post by WillyCKH on Sept 22, 2017 12:17:23 GMT -5
LED is the way to go if you're thinking of DIY options
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Post by krizz on Sept 22, 2017 15:32:26 GMT -5
Ok and as for how much light is generally needed for seedling and plant?
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Post by WillyCKH on Sept 22, 2017 15:46:37 GMT -5
With white LEDs, I find that 30w works well for one tray (1ftx2ft).
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Post by Samskwatch on Sept 22, 2017 21:59:57 GMT -5
May I suggest that you check out Albo pepper’s YouTube channel. He made some nice testing with the different led light colours.
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Post by nimbulan on Sept 23, 2017 10:51:07 GMT -5
I aim for about 2,000 lumens per square foot of grow space for high light plants like sundews. This is enough to keep the plants healthy and give them some color.
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