If you bought constant current LED spots, then you also need constant current LED driver.
Which mini spots are constant current? You can check the product description or specification,
if the input voltage is 3-3.4VDC 350mA or 700mA input, then it is a constant current mini spot.
If the input is 12VDC, then it is not.
It is very important to choose correct LED driver for constant current mini spot.
For 1W mini spot 350mA, you need a LED driver with 350mA output, all mini spots will be
connected in series to LED driver.
For 3W mini spot 700mA, you need a LED driver with 700mA output, all mini spots will be
connected in series to LED driver.
You can select proper LED driver from this list according to your requirements: