I fell back on this universal diffuser ...
First concern the small cut portion is badly cut ... have to do it gently with a cutter ...: /
Second concern universal rhymes with ... misbehaves up! I absolutely do not see myself using it with a simple draft. This could have been avoided if the object was a little less flexible.
Finally, (but it was quite predictable) if the distribution is good, the light loss is to be compensated with at least two IL! : S
In short, if it again, I do not redeem.
