An Idea I have been pondering .
Planting seeds indoors and the seedlings tend to shoot up and get long stems and short skinny roots .
I added some lights ( three led lights on flexible goosenecks , giving capacity to adjust position of the three lights on three goosenecks .
This helped , but not good enough . Was still getting browning and death at ends of leafs where water collects when I mist seedlings ( I mist to simulate nature in a gentle rain ) .
Simplifying , work to simulate nature .
Idea grinding in mind for years . Now comes together with the 3 gooseneck lights ; ( I also have a flouresent light that is blue light . The three gooseneck lights are yellow .
Then it hit me , simulate nature , sun rise and sun set .
This means take the three gooseneck lights and adjust them so that they hit the seedlings from the side .
The hope is the stems will thicken ; the brown death at the tip of the leafs where the water collects from being misted and gravity causing the misted water to run down to the tips of the leafs which curl down a little . I also hope side lighting will give energy to make roots grow bigger , thicker , and deeper .
I will turn seedling tray with humidity dome 180 degrees halfway through the lighting hours , so that for half the time the gooseneck lights are shinning on the other side of the plant stalk stems . The blue light always shines from above at a slight angle from noon time position .
There are probably people who have some lights that travel on a arc like the real world like the sun travels going from sunrise to noon to sunset , like the arc the sun travels .
My method is a poor man's method where I have lights from the side full time , and lights from the top full time .
This method only works If one is trying to simulate nature , because some adjustments will probably have to be made to accomplish what I am trying to accomplish ; which is thicker stems ; bigger stronger deeper roots ; and an end of the brown death at the end of the leafs where the water collects after misting or water from the top . The theory is that the light hitting the tips of the leafs from the side will kill the brown death by hitting the ends from the side with light will make the tips grow and the light hopefully kill the bacteria or fungi that is growing where the brown death of the leafs happen .
I will take a photo when I see results on this thread and let anyone know whether my idea worked for me .
I will let people know what my lights on percentage of the 24 hours .
[ If this is done in a greenhouse where they can't rotate the tables of seedlings 180 degrees half of the time , then they probably would have to have a second set of lights ; one to simulate sunrise and one to simulate sunset ] .
Halman9000