humm, you dont really need that much light, i do best with indirect light (like near a window but out of the sun)
actually doesnt really need to be more than just vague light lol. just enough for the plant to know its daytime, the plant isnt going to use any sunlight.
it uses the old leaves to form roots.
therefore its best to put the least stress on the plant, blue light is better than red for this purpose. (plant out of direct sunlight, receives more blue)
once i see some yellowing in the leaves (or bit of stretch if i forget them) its time to up the light. (you could try putting a white paper on top of the humidity dome, then removing it once you see some yellow or stretch) (or just do it in about 3 days)
experiment with temps also (though 75F is probably fine for most plants)
straight into soil works fine for me (no rooter or anything)
but a bubbler works great for many.
its best to use razorsharp knifes to cut the stem, make sure no air gets in (stick it in water quick (or straight into the medium of choice if you prefer not to use rootgel or powder) (air can form a bubble inside the stem, killing the plant eventually (looks great for a few days)
make sure everything is clean or you will invite mold. (terrible bugger to deal with and kills clones)
with clones its really best to just set them and forget them. (at most check them every three days)
some do take 2 weeks (some 3 days, its rather strain dependant it seems (And technique)