Voltage Optimisers

[pvman]

Hi I've been asked about intalling VO4 single and 3 phase optimisers but I have also been looking at the Marshall Tufflex voltis and just wondering if anyone has discovered any pros or cons with either. The voltis seems to be a bit better as it reduces it by a percentage rather than a set figure. Wondering if anyone has got any figures on the savings for either.

 

[UNG]

Ahh this old chestnut again if you have a search round the forum there is plenty for you to read on these things