i am looking to buy a bitcoin miner .
i can spent only $150 only .
please suggest me best miner .
( i have free electricity through my solar panels )
Nope, you're on the wrong way. forget about mining bitcoin that's will not giving your amount is back to your pouch. try the others.
It's like kill you, you should for buying your middle GPU level with your such amount and trying mining the other than btc, right? I just not wanna for seeing you will lose your money dude.