Prusa Fan Duct

I am using clone E3D V6 in Prusa Extruder on my Anet A8. I have noticed that the fanduct is cooling the hotend instead of the material. I think the Clone V6 is a bit longer than the original. Therefore I have modded the fanduct (it is a bit fatter now) and included some LED lights on the bottom of it.
There are two versions V4 is 0.5 mm lower (closer to bed) than V6.I am using the V4 and it works fine, but it is a bit close to the bed/printed part.

Led strip:
https://www.ebay.co.uk/itm/Diatone-3-4S-LED-Decoration-Board-Strip-Set-for-250-Class-Frame/133262304014?hash=item1f070d630e:g:RacAAOSwtutcJ3So