What is candela?

Candela is a way to measure how bright something looks to our eyes.

Imagine you're sitting in a dark room and someone turns on a flashlight, poof, light fills the space! That brightness, that flashlight power, is what candela measures. It’s like counting how many tiny, bright stars are shining from a single lamp.

Think of a candle, that’s where the word candela comes from! One candle gives off about one candela of light. If you have ten candles burning together, they give off around ten candelas. It's like having ten tiny suns shining in your room.

Now imagine you're holding a flashlight and pointing it toward the wall. The brighter the light feels on that wall, the more candela your flashlight has. It’s like how a big fire in the fireplace feels much warmer than a small match, bigger means brighter!

So, candela is just a way to say “how bright something looks when you look at it”, and it all starts with a simple candle!