This research project Study the illumination of the LED, which is compared to the luminance of the lamp tube tungsten. And is powered by solar cells and batteries. Data logger, which records the machine requires a Power bank to Activate and save the entire working range of the experimental apparatus. To be sure, both types of bulbs have much energy. The results showed that the blue LED light efficiency of 46% compared with the battery used. Incandescent and effective 5% compared with the battery used. It was concluded that the electricity saving LED light bulbs rather than incandescent bulbs up to 10 times.
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