Compact Fluorescent Lamp 3 1.2 Working mechanism of ballast 4 Chapter 2 Design of Compact Fluorescent Lamp Electronic Ballast 6 2.1 The function of electronic ballast 6 2.2 Circuit diagram 6 2.3 Some factors about influence of working frequency of ballast 7 2.4 Detail design of this project 8 2.4.1 Driver IC - Compact FAN7710 8 2.4.2 Selection of Resistance 9 Chapter 3 Light‚ Indicator & category of lamp 13 3.1 Introduction of light 13 3.2 Indicators about lamp: 14 3
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our daily lives. We can all do out part in trying to mitigate global warming There are many simple steps you can take right now to cut global warming pollution. Make conserving energy a part of your daily routine. Each time you choose a compact fluorescent light bulb over an incandescent bulb‚ for example‚ you ’ll lower your energy bill and keep nearly 700 pounds of carbon dioxide out of the air over the bulb ’s lifetime. By opting for a refrigerator with the Energy Star label indicating it uses at
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Question: Comparison of Fluorescent and 75-W Incandescent Light Fixtures 1. The fluorescent light bulb technology is different because it is more cost efficient and one bulb last longer. The incandescent light bulb initial cost is cheaper‚ but in the long run it would take about 13 regular light bulbs to last the same length as a fluorescent one. Not only does it save money on the purchase side‚ but it also saves money by not using that much electricity. A fluorescent light bulb uses 18 watts
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These fears had to be pushed aside‚ and Berge finally decided he would get his hair cut. The day of the hair cut arrived. Berge walked up to the Cost Cutters window‚ and peered inside. He noticed the sharp scissors gleaming menacingly in the fluorescent light‚ the limp‚ severed hair littering the floor‚ and the evil hair-choppers smiling expectantly in his direction. He slowly opened the glass door‚ and was greeted by the hair-murderers’ assistant. She asked for his name and address. He replied
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Nikola Tesla By Karoline A. Woodhouse Introduction Although the use of electricity dates back to Benjamin Franklin’s days‚ it was not practical for use in the home until one person changed the way science thinks about it- Nikola Tesla. Nikola Tesla’s childhood‚ greatest inventions‚ and position as the electrician for the World’s Fair all shaped how he revolutionized the use of electricity and brought it to everyone in America. Childhood and Personal Life Born in a farm house on July 9‚ 1856
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reaction will occur more slowly. I think that as we move the lamp away (and therefore reduce the light intensity) from the elodea pondweed the number of bubbles produced will decrease steadily. For instance‚ say at 10cm distance 50 bubbles are counted‚ it is likely that at 20cm distance 25 bubbles will be counted‚ as the lamp is twice the distance away. This means the rate of photosynthesis is halved. I think that if we move the lamp any further away than 50cm no bubbles at all will be produced
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A World Without Power If you can‚ imagine a world without the simple‚ everyday privilege to have electricity in your home. Nikola Tesla is the single person responsible for giving this ability to the common world. Without Nikola Tesla‚ the world would be very different due to his inventions. His contributions pushed the world forward because of his alternating current‚ his wireless‚ and his energy related inventions. Nikola Tesla is not very well known for most of his inventions‚ even though
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James Baldwin’s 1953 novel‚ “Go Tell It on the Mountain‚” about a Harlem teenager’s search for meaning‚ quickly became a classic‚ along with his searing essays about race published a decade later in the book “The Fire Next Time.” But in recent years Baldwin’s presence has diminished in many high school classrooms. In a year that marks the 90th anniversary of his birth‚ educators offer different reasons for Baldwin’s faded presence there‚ from the concern that he is too controversial and complex
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Releases New PL EDGE Series Vertical DIRect and BYPass LED Lamps South San Francisco‚ CA‚ September 18th‚ 2015 -- GREEN CREATIVE‚ the commercial grade LED lighting manufacturer proudly announces the launch of its first PL V 11W DIR‚ PL V 11W DIR HIGH CRI and PL V 11W BYP lamps. Part of GREEN CREATIVE’s new PL EDGE Series‚ the PL V DIR and PL V BYP lamps are CFL retrofit solutions for a variety of existing vertical lamp installations. All PL V lamps feature exceptional efficacy and a patent pending round
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adverse health effects? The lighting design experts have given some suggestions: One‚ when choosing the lighting‚ we should choose those lamps with the characteristics of high color‚ high-strobe‚ stable performance. Such as the fluorescent lamps with electronic ballasts‚ LED tube light and so on. High color‚ light‚ moderate‚ no flare spot‚ no aperture lamp‚ which
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