Does it matter

So i have my plant about 10'' and its in a bucket that is 20'' in diameter and 7" tall. know i have on top a 4 ft plastic trash can. at the top is my light that hang about 4" from my plant. (thats the lowest i can get it) would it help to use tinfoil to reflex the light? or could that cause the leave to start to burn?

Paint the inside of your can FLAT white...is does the best to diffuse the light...tin foil will concentrate the light a certain HOTSPOTS and results in burning your plant located at the hot spot and distribution of light is very unequal

thak know for the light i have seen pics of peoples that have tin cans around the light to reflex more light towards the plant would that help out as well?? what are like the first signs of hotspots?

mylar works the best and you can get really cheap off of ebay