Are there any developments to improve or more clearly identify brightness?
With the utilization of water clear GaAlAs, greater efficiencies have been achieved in LED brightness. It’s important to remember that the highest brightness levels are typical only of red LEDs. For comparison, a very bright red LED has from 3000 to 5000 mcd brightness, while a green LED with a comparable brightness will only have from 600 to 800 mcd. Brightness levels for “standard” LEDs throughout the industry are only 1 to 5 mcd at 20mA.