Light Technology

Candle Power

Unit: Can­dela (cd)

It is very im­por­tant to know the dif­fer­ence be­tween Can­dle Pow­er an Lu­mi­nous Flux. The Can­dle Pow­er in­di­cates how bright an ob­ject can be il­lu­mi­nat­ed at some dis­tance. With a very nar­row beam, very high Can­dle Pow­er can be ob­tained. But a high Can­dle Pow­er val­ue does not al­ways mean a high Lu­mi­nous Flux. An ex­treme ex­am­ple is a las­er poin­t­er: The Lu­mi­nous Flux is very small but the Can­dle Pow­er is ex­treme­ly high.

Color Rendering Index (CRI)

White light from dif­fer­ent light sources may have quite dif­fer­ent col­or ren­der­ing.
Learn more about the se­cret of col­or ren­der­ing.