LED newbie, need advice on wattage, setup for plants, etc.
I'm setting up a basement area where many of my plants will go this winter, and these plants require approximately 80-90% natural sunlight, similar to the intensity at 30Ã¯Â¿Â½S latitude in autumn. I purchased a large screw-in LED directional bulb/fixture, 21 watts with output of 1150 lumens.
My questions are: how far from the top of the plants should this bulb be, and what square footage of plants can I put under the light? Most of the plants that will go here will be succulents--aloe, albuca, oxalis obtusa, stapeliads, etc., basically south african species.
I have several smaller LED red/blue 2.2w bulbs that will also be used.
Is there a 'rule of thumb' to calculate LED wattage per square foot required at a given height, to produce a desired % of natural sunlight?
If you're using LED's exclusively for plants with high light requirements, I'd really like to hear about your setup...in excruciating detail, 'natch!
--Rick in CT