Questions and Answers for Philips 60-Watt Equivalent A19 Dusk To Dawn Automatic On/Off Energy Saving LED Light Bulb Soft White (2700K)

A:  This bulb is manufactured in China

A:  Yes. On at dusk, off at dawn.

A:  I'm not sure I understand your question, but as long as the switch is on, the bulb will light when it gets dark and shut off at dusk. You should always leave the switch on. I hope this helps.

A:  Bulb stays on until light level reaches a certain intensity. The sensor then switches the light off during daylight. I have had mine installed for a couple years now. Light stays on all night and off all day.

A:  Yes it will turn on at dusk. I just love coming home to a lighted porch. They last a long time. The last bulb I purchased lasted a little over 5 years. Worth the money.

A:  It should come on automatically at dusk and go off at dawn.

A:  This bulb has a photosensor that detects light so as long as the fixture that the bulb is installed in has power, the bulb will turn off automatically when it detects daylight and turn on at night when sun goes down.

A:  This bulb can be used in open fixtures, but it should not be used in an application where it will be directly exposed to water. This bulb is rated for use in temperatures between -4 degrees and 113 degrees Fahrenheit.

A:  Yes. I have ours in a fixture that has an open bottom, which I have had there for the last 2-3 years. It has worked great!

A:  Mine are in coach light fixtures. Not exoposed to the weather. The lights have been in use for over two years. I wouldn't recommend exposing them to the weather. Please check with the manufacturer.

A:  In cold winters of Northern USA bulb will not operate properly or will not lit. It is not advisable to use an open lamp without a light fixture as it may break. For temperature range go to Phillips site.

A:  We use this on our deck and it works fine during winter. Not sure about the kind of enclosure you refer to, but ours has a glass cover from the top so that rain won't get to the bulb.

A:  I wouldn't use this style of bulb, LED or not, in an outdoor fixture without some sort of weather protection. It's not the bulb that's at risk, it's the fixture itself. If water gets into the socket that can't be good for the fixture.

A:  Yes, I have had mine for several years, I live in Cleveland, Ohio (read that as rough winters) and it has worked perfectly.

A:  As far as know they are not. They are made to turn on at dark and off when light and they do that very well.

A:  I am not sure. I used the bulbs on my porch light for our vacation home at myrtle Beach, it is very reliable lighting for my purpose, never tried to use it with a dimmer.

A:  No - this bulb is non-dimmable and must be used with a standard on/off switch

A:  No they are not dimmable. They are however the greatest bulbs ever. It is so nice to come home to a well lit exterior. Definitely worth the price, love them.

A:  They are not dimmable.

A:  This bulb is not rated for use in enclosed fixtures

A:  3 hours per day is a standard used across the lighting industry to calculate energy cost. This is meant to be a general guide and would need to be adjusted depending on specific application. The following link provides a great calculator to assist with estimating energy cost depending on your specific situation. https://www.inchcalculator.com/lighting-energy-cost-calculator/

A:  great product. very useful.

A:  Sorry, not sure. My outdoor fixture takes a single bulb. However I must add that this bulb is wonderful. The bulb has been in my outdoor fixture for at least a year and still going strong.

A:  Yes. Usually only 1 will work, sometimes 2. Depends on which way the sensors are facing. Did this before and no one was happy. If the light is on a switch would recommend saving the money on the bulbs and buy a dusk to dawn light switch.

A:  While I don’t have any experience with your exact scenario I experienced something similar with 2 of these bulbs located on either side of my garage door...approx 16’ apart. Early one evening I noticed that one bulb was lit and the other was not. My first thought was that the one bulb had gone bad and needed to be replaced. About 30 minutes later I noticed that both bulbs were burning bright. Only guessing but this may have been due to a slight difference in the sensitivity of the sensor of the two bulbs or on the position of the sensor itself when the bulb was screwed into the socket. You may experience something similar with 3 bulbs located in such close proximity to one another. They may not all turn on at the same time or, as you ask, the light from 1 or 2 of the bulbs might affect the others. My suggestion is to buy these bulbs and see how they work in your particular situation. These bulbs work great and save me the hassle of installing wall timers to turn the lights on at dusk and off at dawn.

A:  If the light post and all three bulbs are controlled by one switch, when the first bulb senses darkness, the whole circuit (all 3 bulbs) will be switched on.

A:  This is a Dusk to Dawn bulb that has a photo sensor incorporated into the bulb. The sensor will prevent the bulb from turning on if it detects a high enough level of light. The bulb will come on as long as the light switch controlling the socket is turned to the on position, and there is a low enough level of ambient light.

A:  It does not need to charge, just needs to be getting dark outside. The little red sensor will pickup that it's night time and light will come on. You will have to keep that switch turned on, do not turn off or it won't work.

A:  Put the bulb in socket and have the leave the switch for light always in the "on " position. When it gets dark out, the light will automatically turn on. In the morning, the light will turn off when its light outside.

A:  you have to wait till it is dark...or you could probably cover the sensor so it "thinks" it is dark out.

A:  I just installed my bulbs. I purchased 3 for my carriage lamps out front. I've had them in for 3 years and they work like a charm. I don't recall a switch, but it's possible. However I don't believe there is any charging needed. The bulbs should come on when it gets dark ish outside and turn off in the morning when it gets light ish. When it rains and get overcast the bulbs will come on too. I am very happy with the way mine perform. Hope this helps....