This test is the main reason for "Project Overkill". The LEDs needed 5 volts and I would use the power supply in the future. I just spent too much time working on it. Nevertheless, I finally loaded a demo sketch onto my Arduino Uno and hooked it all up. So far everything works great. The strand in the picture is fifty LEDs. Soon after this picture was taken, I modified the sketch and daisy-chained an additional fifty LED strand. Without re-injecting power, I expected some flickering or unusual behavior. To my surprise, all 100 LEDs worked just fine. I plan to buy a few more strands soon.