Ciata Lighting LED Smart Emergency Light Bulb with Rechargeable Battery Back-up - Intelligent Lighting, Lasts 3-4 Hours During Power Outage - Extra Hook for Camping, Outdoor (2 Pack)

This is not my first purchase of these. Storms, Hurricanes,POWER OUTAGES, This is a MUST Previously I had only had to use these on poweroutages of a short duration. But the Last Hurricane I had NO Power for almost 6 days. I LOVE THEM!!! your can carry them in your hand, hang them with the enclosed hook, orjust screw them into a light fixture. I was Covered. I put one in every essential room and then had one I carried to unlite spaces. These illuminate a much larger space then a flashlight. If put in light sockets or lamps you can turn them on and off by the wall or lamp switch. The ones you carry have a button on the back of the screw top. If you are ever with out power you will wish you had these. They are now on my essential list.

Power went out in a storm and, out of habit I flicked the light switch and BAM! There was light, in a power outage! Instead of flicking the switch and then feeling silly for trying to use the lights as in the previous storm. Will be getting a few more of these. I love having function light switches without having to do anything.

We were about to get hit by Hurricane Ian. My mother in law bought and shipped these to us 3 days before. Helped so much!!

I would have given these bulbs 5 stars if it were not for the fact that there were absolutely no instructions enclosed with the bulbs. We wanted to try the bulbs out before we had a blackout, so put them in a lamp, and then unplugged the the lamp to see if the bulbs stayed on. They didn't. So we assumed they didn't work. But then my husband decided to turn off the breaker to the lamp that the bulbs were in, and lo and behold, they stayed on! So you can't test these out by simply unplugging. But they will stay on in a power outage. I hope this helps. If there were just some simple instructions that came with the bulbs that explained this, it would have saved us a lot of trouble.

Bought these for use in our canopy for vendor events. Unfortunately, if you are using them at full brightness, the charge only lasts maybe 2 hours. We found ourselves packing up in the dark.

They are good for power outages

Comes with 4 bulbs. We plugged them in and they light up like normal bulbs but come with a screw on attachment that allows them to work when the power is out. We then had a power outage within a week or two and these lights stayed on for a few hours. They work really well and I am planning on buying more.

So far have not a have a need to use it but, it’s insurance for when it is needed. ‘Cause ya never know!