Bro, this is very subjective, its depand on the type of headlight you are using and how high is the angle of your beam. Basically projection headlight with proper beam angle should be quite safe as its not too glaring.
As mention, got this item for sale, been using it for past 8 month, no leak, no damage. Changing it because need to replace it with MF-R front pipe. Askingn form RM 900. Nego. Refer to this website for picture...