SINCELIGHT Dusk to Dawn LED Light Bulb 9W with Dual Photocell Sensors, ON/Off Automatic Depends on the Daylight Level, Outdoor Night Light from Dusk Till Dawn, Security Bulbs, Warm White 3000K, 2 Pack

I am currently working my way through different manufacturers daylight sensing/dawn to dusk bulbs. All arrive in impressive packaging, and neatly turned out. All work straight away, and one or two have exceeded 6 months. As the majority claim an expected life of 25.000 hours something is going wrong. I have many ordinary LED bulbs in the house, and their life is impressive. I like them. My feeling is that sensing bulbs can be let down by the sensor failing. Do I have scientific evidence? No, just observing how these bulbs last in normal conditions over measured periods. As for this bulb. I give it full marks after its first week. I am pleased with it, and if it slogs through 25,000 hours of life I will tell you. Just make sure that if you buy one check out its life span.

Nice quality and perfectly glowing

Mine lasted 3 years before it needed replacing, which is pretty good considering it was out in all weathers. It just started flashing one night so I replaced it. Great for carriage lamps when you don't want to have to turn them on and off manually. They are quite bright though, I would have preferred it to have been a bit darker for overnight.

I wanted a dusk to dawn light in my recessed porch as it’s on the side of the house. It’s been in use around two months and is working fine. On dull days it stays on for an hour or two, even though the porch is south facing. It is also very bright at night. I’m not complaining: it’s LED so is energy saving, but I might have gone for a lower lumens had I realised it would shine through the glass front door AND opaque glass internal doors - basically I’ve had to buy a black out curtain for the front door to cut it down. Also beware if you are using it with a flat ceiling light fitting - ie the hubcap style ones you see in bathrooms - as when I went to buy one, all but one were too shallow to accommodate the bulb.

Perfect. We use these in my outside light. Glad to get replacements

Excellent

Brilliant so far, works perfectly in my outside lamp. It is a bright white which I prefer. No idea if they will last the stated years as only had them a month. Great idea and saves me having to remember to switch the outside lights on and off. No evidence of flashing as other reviewers have said. Edit: Feb 2025 my outside light stopped working so that's 5 years of use, excellent! just about to buy again

Like the dawn to dusk function unfautunatly way to bright had to dull it down using black felt on bulb othere wise would strain your eyes