Recieved my led lights from china,sinapore, japan I'm not sure where they came from. Put the first one in and it worked for about 1 1/2 seconds. Second one did'nt work at all! Put them on a 12 volt power supply and they work fine. Checked the power output at the light socket and it shower 14.4 volts. Maybe they are getting too much power. Any suggestions?