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Old 07-03-2010, 10:21 PM   #1
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Outdoor Sensor Light Problem

I purchased some sensor light and PAR38 bulbs from Lowes recently.

Sensor Light:
Health Zenith Secure Home (SH-5105-RS-B)
Picture / Details

Feit Electric Performance LED Par38

Bulbs use 16w to replace 75w. Sensor light uses max 120watts per bulb, so that's not a problem.

When turned on (test or not test mode), they just blink.

Took out one PAR38 (left the other) and replaced it with a regular typical 52w bulb. Both went on, worked fine. Switched the sides of the PAR38 and reg 52w bulb, still works fine. Switched out the actual Par38 bulbs to make sure each work, they both work. However, once BOTH PAR38 bulbs are in together, they go back to blinking/flashing.

Any ideas what may cause this? Its obviously not each bulb, nor the sensor light system itself. I'm baffled about this.

The switch is a typical light switch, not a dimmer or anything.

PS: I'm not an electrician so I have no advanced experience with this nor know the proper terminology so forgive me

Thanks for the help in advance.

Last edited by Chadi; 07-03-2010 at 10:49 PM.
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Old 07-04-2010, 09:44 AM   #2
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Do you have power to the fixture? If you do, have you tried adjusting the sensitivity? That's what it sounds like to me. Get out the instructions and follow them regarding the sensitivity adjustment. If that's not it take them back.
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Old 07-04-2010, 10:42 AM   #3
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Originally Posted by Chadi View Post
they just blink.

Any ideas what may cause this?
The sensing circuitry needs a minimum current draw to work properly, and this minimum draw is not published in the install manual?

Or, the electronic switch-mode power supply within the LED lamp interacts with the electronic circuitry in the sensor to form an oscillator.

Last edited by Yoyizit; 07-04-2010 at 10:47 AM.
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