I’m called Rene and have a problem with my new LED additional headlights, which I want to connect to the motorcycle. First unpacked …Each of the two lamps has 2 cables (black & red ) to connect to the 12 volts power supply. First simply connected to a battery starts the problem. The lamp lights well … but goes out again after 5 to 8 seconds on its own. I separate the current and connect immediately again …The lamp flickers very fast… I separate the power supply again and plug it in again for the 3rd time … Now the lamp burns only weak ! And so the game continues again and again in the circle . What could be the cause ?? already many thanks in advance