I have recently installed a new power supply to an new unit and connected the existing power and lighting to a new DB in the unit. I have also had to put in a new supply to this unit from a 3 phase board. The problem I have is that the Flourescent lights keep going off and coming back on again, power is not affected just the lights?? can anyone give any advice on this. There are 7 6ft twins and 2 6ft singles.