I have a similar LED strip and I have joined the three together.Each of of the solder tabs provide different level of brightness.The three joined together gives the brightest light.Positive lead to the + tag and -ve lead to the other tags as required....cheers Peter.
__________________
SOME POLITICIANS AND BABIES NAPPIES SHOULD BE CHANGED OFTEN FOR THE SAME REASON.
Press the camera shutter button half way and allow time for the camera focus on the subject before pressing the shutter all the way, Bill. If the camera has a problem focusing because the subject is too close, select macro (the flower icon). When ever you take any photo with a digital camera, always press the shutter in two stages with a pause between.