I have just received an LED kit from Rapid LED. While I was putting things together I ran across a couple things I had questions about. I hope someone here will be able to answer them for me. The first question is, what is the SVR2 dial and why did I have to turn it down? The second is, how can I ensure the optics stay in place, they dont feel like they are locked in very well, but that might just be me. My third and last question is, can I crank a string of 9 LEDs at 100% without fear of blowing them up? I put a volt meter on the driver and turned it up to 100%, the reading was 48.3 volts. The strings with 9 LED should be close to 27 if Im thinking correctly, will it blow up? My set up is as follows: 4 x ELN-60-48D drivers running 42 LED's. I have 2 sets of 12 and 2 sets of 9. I am also using the Rapid LED Potentiometer to dim the lights until I get a controller. So far all the LED strings function as designed and blinded me in one eye. I'm just about finished getting everything mounted above the tank. Once that is done Ill be able to finish wiring the lights to the controllers and clean things up. Ill have to post a picture or two if it turns out like I plan. Thanks in advance for the help.