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Product Specifications
Part Number HS-303
Item Package Quantity1
Product Features
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Product Description
From the Manufacturer
Universal Security Instruments HS-303 - automatic light control
Product Description
Dusk to Dawn Light ControlProduct InformationThe Universal Security Instruments HS-303 Automatic Light Control is ideal for use while you are away from your home providing a sense of security. The bulb screws into any standard bulb socket turning light on automatically at dusk and turning light off automatically at dawn. You can use it with 120 Volt AC - 150 Watt maximum incandescent. The optical sensor/cell covers a 360 degree radius. Save energy with the HS-303 Automatic Light Control.Product FeaturesThree adjustable shutters control light sensitivityUse with 120 Volt AC - 150 Watt maximum incandescentOptical sensor/cell covers 360 degree radiusThe light turns on at dusk and off at dawnFits any standard incandescent light socketSaves money and energy as the light only es on when neededThe sensor is activated by direct or reflected light90-day limited manufacturer warranty
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Customer Reviews
Most Helpful Customer Reviews
11 of 11 people found the following review helpful
Amazon Verified Purchase
I have tried many makes and models of automatic light control sockets that use a light sensor to determine when to allow current to flow into the bulb. Some of the sensors work erratically, some have a short lifespan, some are bulky. This one's advantage is that is has 3 light sensors arranged around the circumference, with a sliding panel that can be closed over each sensor, to make the controller more or less sensitive to light. This is also helpful when you have a light fixture that faces walls on one or more sides, and when you screw in the controller, sometimes the light sensor faces the wall. This unit remedies that by giving you the choice of 3 different sensor locations. The only downsides are that like some others, the amount of current allowed into the bulb is proportional to the ambient light level, so that the light slowly fades on as evening progresses to night, rather than 100% on or 100% off. And even in total darkness, the controller dims the bulb slightly compared to not using the controller. This can be fixed by getting a brighter bulb than would normally be used. Like I said, an imperfect product, but so far is the best I've tried, and has a nice price as well.
1 of 1 people found the following review helpful
Amazon Verified Purchase
I've been using this for about a month on an outside door lamp. Does the job. I'm going to order two more.
1 of 1 people found the following review helpful
Amazon Verified Purchase
I ordered 2 of these to use in my outdoor carriage lamps.
One unit would not turn off no matter what I tried even in full direct sunlight with the shutters removed.
The other unit flickered constantly when on. Both units produced a slight noticeable hum like a florescent light.
So they definitely are for outdoor use only. The adjustable shutters were not really adjustable.
The shutters were little plastic covers designed to slide open to the degree needed to trigger an on or off response to light or darkness in your area.
I found they kept trying to slide closed. If you were lucky you could get them to stay all the way open.
It was either all the way open or all the way closed for me. These are made in China and unfortunately they are of low quality.
I had to return both.
One unit would not turn off no matter what I tried even in full direct sunlight with the shutters removed.
The other unit flickered constantly when on. Both units produced a slight noticeable hum like a florescent light.
So they definitely are for outdoor use only. The adjustable shutters were not really adjustable.
The shutters were little plastic covers designed to slide open to the degree needed to trigger an on or off response to light or darkness in your area.
I found they kept trying to slide closed. If you were lucky you could get them to stay all the way open.
It was either all the way open or all the way closed for me. These are made in China and unfortunately they are of low quality.
I had to return both.
Most Recent Customer Reviews
great product
bought a sensor at one of the big boxes it wouldn't work! this one is awesome the three different shutters is ingenious. Read more
Published 6 months ago by Mark Thomas
Doesn't work
Add me to the list of people who bought this, only to find it doesn't work at all. Or in my experience, doesn't work at all after two days of working. Read more
Published 11 months ago by Mark Hren
So-So
I like the 3 sensor windows concept. The unit functions but it does so at decreased light output. My main objection is the directions state that at start up the bulb might flicker,... Read more
Published 13 months ago by Edward Graves
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