you will want to do 12v with power injection depending on the strip type. how many led's per meter? you will want a power supply like this, scale up or down depending on how many led's you will be having on the strips. You will want a dig quad or a d1mini (if you go with the mini you will need to step down the 12v to 5v with a buck converter. Video's are perfectly fine, the only difference is the power supply's and start voltage (UK power vs US) but the concepts are all the same.