Quote:
Originally Posted by SilverShaded
LED strips consume about 5W / m, you need at least 500W/m2 assuming you get 100 lumens per Watt, to get 50% sunlight. So you would need to fit 100m of tape onto a 1m2 surface to have ~50% sunlight. (all numbers are approximate).
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At what distance?!
These numbers may apply to white light that is 2+ metres away, but not to red/blue that is 50 cm away. You need much lower wattage with those. You will find much more information on red/blue lights on pot-growing forums.
I have orchids doing well with 70 W spread in a line across 1.8 m. There are fourteen 5 W LEDs in the light fixture that is lighting this wall. The wall is 1.2 m tall.
Finally a stupid question: if this is a shade house, wouldn't it be better to just reduce the shade?
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