The lights on the downtube are one half of a strip of LEDs I ordered. The exact product is here. The other half is on the left chainstay. You can cut them every 3 LEDs, but the .5m strip only comes with two leads, so cutting one into 3 or more parts would require some soldering directly on to the contacts on the flexible PCB. Any cutting of it though will require additional waterproofing in order to stay waterproof, and for this I just dipped the cut end of each in some epoxy.

I would rather see a cyclist with a poorly aimed light than not see one with no light at all. Still, I agree, one should take the time to properly adjust and secure a light for night riding.