mylar is better than any type of foil as it has a 98% relectivity
if you use like 3 lights with ya room coated in myalar it is like you get 1 light free due to the good reflectivity
i use mylar and foil and i can say the mylar is ten times better than any other reflective material i have used
cheers hope this helps
busteruk7 Reviewed by busteruk7 on . foiling hey i m only using aluminum foil and im still losing way too much light if theres 600 ws in the room its probably recieving 400ws. i wanna get somthin thats pretty much a mirrior but i dont wanna spend that much money i saw one person like burtonukk7 has it in his closet where its like mirrios what is that stuff how much does it run were do you get it Rating: 5