Light set for Clones

Normal vege light cycle is fine.. don't want to confuse it with long uninterrupted nights as that will cause it to go into bloom phase at best.. or simply fail to root at worst with the added impedence. Weak light is key... if they don't fall over or very weak up top, it's weak enough lighting. Still need some photosynthesis taking place for any growth you expect, even if roots, albeit a very small amount that first 3-7 days. I can't see roots forming in the substrate, so i just slowing increase light, if they droop, i pull the indivduals back into weaker light that exhibit drooping, but keep pushing the others to handle what they can. After a week or more you'll likely see they can handle more and that's a sign they have grown some roots. When i've babied them for 10-14 days in weak light i have more failures (***small sample anecdote.. take lightly) . if you blast them with light early they also die more often. Lately i just plop them in about 6-8oz of coco/perlite 70/30 and a 0.1 to 0.2 EC mix of my normal nutes... i.e. VERY diluted. no hormones, no dome.. just keep substrate from drying a bit more than normal irrigation practices. Within 14-21 days i have vigorous vegetative growth and they are under normal vegetative lighting by then with no ramp up, cause i already get them used to the light slowly before this point.. 16/16 last try... current ones i have 1 that keeps staying droopy while others are adjusting, i expect mr droopy to fail. 7/8 success rate there. other stuff can speed it up.. i believe hormones can cut a day or two off if used properly.. more is not always better. a humidity dome can definitely help despite my lack of care to use one. You want to slow rate of transpiration for best results and that means slightly elevated RH% is helpful. I'm sure some do what i said above in 7-10 days. but, waht i do is extremely cost effective and simple... the minimal light they need early on is a few watts per hour vs 100's/hr later on. You can't plan for optimal speed unless you take a ton of extra cuttings.. some variance is likely to occur in the length of process.

Here's 1 link. I can find you many if you want. This is stuff I have tagged on my Homescreen.. I was doing wrong. Putting them under light. They take too long to root. No light. Until you see roots. It's not needed. Why would a plant, that has no roots, takes up no nutrients need light. How does this make sense. https://bigdaddyclones.com/how-many-hours-of-light-do-weed-clones-need/ Good luck.

Again. You DO NOT WANT ANY LIGHT FOR CLONES UNTIL YOU SEE ROOTS. Root riot cubes. Dip your stems in clonex and in a propagator.. when you see roots. Plant it. It's that simple. You'll be waiting ages for roots to grow putting them in any light. When they will grow their roots is when you put them in dark rest. Please folks.

I second DayTrip You can use fluorescent bulbs in the beginning and then transfer to under the LED.

18/6 or 24/0. Really depends on preference (power consumption-wise). Just remember to keep the lamps a further distance away than flower, it will harm the plants and cause burning in some cases.(my own experience)