Hi guys,
I did some LTC mining 10+ years ago but now I have solar on my roof and can spare up to 1500W for mining. Thus my electricity will be less than 0.1$ per KWh

I consider buying either the Innosilicon A10Pro or the Pro+ Version. It will sure be a used unit from China (as I live in the Philippines), but how reliable are the mners if they have been used for lke 2 years already (I dont know when they were brought into the market).
I prefer the A10 Pro because besides ETH I can mine other coins too if in the future the market will turn.

So I just ask you, if you would consider it a good invest for the next 2-3 years if I would be ok in earning like 6K$ per year.