re: Lamp bulbs to for lamps without plugging the lamp in

GE makes LED bulbs with battery backup that lasts up to 5 hours.

It was kind of funny how I found out about these bulbs. My sister passed away recently and I was staying at her house in Gulf Shores cleaning out her possession before selling the house. The power went out except for 2 lamps in the living room. I thought something bad has happened to the breaker box or the power drop to the house. I checked the breaker box and found nothing wrong. I called the neighbor and he confirmed his power was also off. I told the neighbor something weird is going two of lamps work. I can turn them on and off. Not sure whats going on. Thinking out loud I told the neighbor maybe my sister has some fancy kinda light bulbs I don't know about. She was an electrical engineer and loved tech stuff. Sure enough I took one of the bulbs out and it was heavier than a normal bulb and that's when I found out about these bulbs.

I thought some black magic voodoo was going on for a little while

I bought several for my house and they work as advertised during a short power outage.