outdoor security light


Old 11-26-07, 06:22 PM
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outdoor security light

I have a sodium outdoor security light that stays on for awhile and then goes off . But only stays off for a few minutes and its back on. we replaced the photocell on top. Could the bulb cause the light to go off and on also?
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Old 11-26-07, 08:18 PM
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Your problem sounds similar to one I had a year or so ago with my outdoor fluorescent light. My light would flicker a lot, and also turn off and on. My problem turned out to be the reflected light from the unit itself was triggering the units light sensor. I had to relocate the unit down so that it wasn't so close to the eaves of the roof.
Old 11-27-07, 12:05 AM
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I high pressure sodium bulb will cycle on and off when it reaches its end of life.

And to eliminate light reflection as a possibility just place black tape over the photocell for a test.
Old 11-27-07, 08:19 PM
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thanks for your reply, i will try replacing the bulb
Old 11-28-07, 06:33 PM
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Your ballast may be going bad and the thermal cutout is heating up.
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