The remaining blue light, when mixed with the yellow light, results in white light. New phosphors are being developed to improve color rendering as shown in Figure 5. Figure 5.
How Long Do Parakeets Live? Parakeets tend to live 10 to 14 years, if in good health. Not all will live that long, however, since parakeets can fall ill even with proper care. Improper care can shorten their lifespan to a mere 4 years or less. Consider these parakeet care tips.
Every bird is different in make up and of course their diet and external environment plays a huge part in how long they live. But I would say your parakeet lived out it's average life span. The lifespan of Parakeets is 8-10 years. You must have given given him a wonderful life to have made it that far. I have heard that accidents take more lives than the average lifespan of a parrot and many never make it to 6 years old due to accidental death.