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.
Budgie lifespan is more than 15 years, but in order to live for so long time, they need to be cared for.The budgie cage must be kept clean, neat and washed, and it needs to have several accessories and toys. They hate to be left alone, to be punished or hit, or to have unwashed cages or be kept in tight spaces.udgerigar parakeets need an average of 10-12 hours of sleep in the dark in a quiet environment. If they sleep less, they become nervous. If a budgerigar parakeet has night fears, flying through the cage hysterical, then uncover the cage, turn the lights on, and talk to calm him/her down.