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North Central Kansas | I guarantee it's the bulb. I've never seen a photo eye go bad like that unless they are hooked up wrong (line and load backwards). Since its a pre wired light and you've had it 3 years, no chance of that. When a photo eye goes bad, it just don't work. When a HID bulb nears the end of its life, it sometimes starts cycling on/off.
A cars headlights won't turn off a photo eye unless pointed at it for a couple of minutes. | |
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Mercury vapor yardlight going on & off
