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Old March 27, 2018   #1
mobiledynamics
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Join Date: Jun 2016
Location: 7B
Posts: 281
Default LIGHTS - how close is too close

I'm using LED lights. They're pretty powerful compared to my old grow CFL's. For the 1st week to 10 days, I literally got dizzy/nauseous when I got close to the lights. I turned off the lights before heading into the boiler room

I think it's not due to to the brightness but *brain confusion*, as the LED lights gives off a array of colors, blue, red, white, ir, uv etc.

Anyhow, for the most part, I've had my LED's about 12 inches or so away from the tops of the seedlings. I've tinkered with the dimmer settings (it has 3 modes, seedling, veg and bloom). Since it's sprouted, I've had the seedling on 100% and Veg as well on 50%. Sometimes I'll crank it up more, just to vary the light output. Manuf. recommend height during vegetative state is 24-30 inches. . That seemed awefully far away --- well compared to the mere inches CFL setup....Granted, there is no universal rule when it comes to gardening, and or height/relative to light output/relative to plant response.

Anyhow, what's the rule of lights / seedlings. Just crank them as high as long as it doesn't burn ?

I've got the same lights on my seeded annuals and I have them on FULL blast and they are loving it.

Not sure what the rule of thumb is with 'matoe.

Last edited by mobiledynamics; March 27, 2018 at 08:14 PM.
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