Ciata Rechargeable Light Bulbs - Power Outage Supplies, Battery Operated Light Bulb with Rechargeable Battery Powered - Lasts 3-4 Hours - with a Hook for Camping, Cordless Rechargeable - Pack of 4

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.

After receiving my replacement for the first order, I am returning my second shipment of these bulbs. Both sets lit when in the palm of my hand, when activated by little switch (included) and when in a light fixture with power on, and switch on. None of the four that I received came on when the fixture was unplugged. The only reason I bought these was to have light while I look for a lantern....emergency lighting. I am done hoping that I could accomplish this with this brand.

I liked the price, and ease of use. They barely fit in my lamp with the shade on, but I made it work.Forgot I had put these in and when my tv suddenly went off I thought it was just that socket that wasn't working.Kept trying other sockets but none seemed to work.Couldn't figure it out, why was the light on, but that socket didn't work when I plugged the tv into it?Finally remembered that I bought these lights. They worked great and were as bright as when the power was on.Highly recommended.

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.

I had seen similar bulbs advertised on some social media not the same ones, so I was looking for something less expensive than the exorbitant price I’ve seen on social media for these. I plugged a couple of them and charge them up then took them out of the lamp socket and put on the little adapter with the hook, and they appear to work great! The power level is just as bright ones they’re charged up and taken out of the lamp and the adapter/ring is put on. After having a recent power outage that lasted all day from a storm a few weeks back, I decided that it would be great to have some of these just in case. I would recommend them.