Lightbulbs can be very bright and light up dark rooms. You can get different levels of brightness depending on what you need.
Nowadays lightbulbs come in many colors, not just white or yellow. You can even get bulbs that change colors with a remote!
Lightbulbs aren't all the same shape. Some are round, some are spiral, and some look like candles. There are many different designs.
New lightbulbs use less electricity than old ones. This is good because it saves money and helps the environment too.
Modern lightbulbs can last for many years before you need to change them. The old ones used to burn out much faster.
Thomas Alva Edison worked very hard to make the lightbulb. He tried many different materials for the filament until he found one that worked well. He did lots of experiments in his laboratory and never gave up even when things didn't work. After many tries, he finally made a lightbulb that could last for a long time, and this changed how people lived because they could have light whenever they wanted.