Hello. I am trying to wire 40 LED bulbs to a power supply i bought with them. Each bulb has a forward current of 100 mA. So, I calculated I would need 4 amps of current to power the lights if I wired them all in parallel. However, the power supply I purchased Says 12V DC 12.5 Amp. Is that ok? Do I need a 4 amp supply? Or is that just the maximum rating? Also, I understand how to hook up the 110 AC to the back of the power supply but I don't know how to hook the positive and negative of the LEDs to it. Besides the 110 AC connections it has four terminals side by side. Two that say "COM" and two terminals that say "+V". Do I connect the positive line of the LEDs to "+V" and the negative line to "COM"? Does it matter which one? Please help!