Hello, I have the Defender PRO Sentinel 8CH H.264 2TB Security cameras wth night vision installed on my property. Had them for a little over a year, always worked great never any issues. We had a severe thunderstorm last week and lightning struck an electrical pole outside our house, we did not lose power, after this only 2 of the 8 cameras had night vision. The next night 4 out of the 8 cameras went into night vision, tonight none of them went into night vision. We contacted tech support last week and they told us it sounds like a power issue and recommended we replace the 2 squids, and power supplies, we did this and still no night vision. We also tried a new surge protector, tried using wall outlets, unplugged whole system for several minutes, reset breakers in the house. When the cameras did work at night, the led lights were bright red, now they are a very pale pink color at night. Would it be possible that a power surge from lightning that hit the pole outside may have did some slight damage to the dvr internal power supply preventing it to give off enough power to allow nightvision to kick on? We are baffled about this since all the cameras work perfectly in the daylight and dvr seems to be working fine.