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fuzzMan53
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Does a 60W Type A (general service) incandescent light bulb put out more light than a 60W Type B (candelabra torpedo) incandescent light bulb?
Incandescent shape efficiency refers to the ability of an incandescent light bulb to convert electrical energy into visible light. It is measured in lumens per watt (lm/W), with higher values indicating a more efficient bulb.
Incandescent shape efficiency is calculated by dividing the total luminous flux (measured in lumens) of the bulb by the power it consumes (measured in watts). This ratio gives the efficiency of the bulb in lumens per watt.
The main factors that affect incandescent shape efficiency are the temperature of the filament, the type of gas fill used, and the filament material and design. Higher temperatures, certain gas fills, and well-designed filaments can lead to higher efficiency.
Compared to other types of lighting, such as LED and fluorescent, incandescent bulbs have lower shape efficiency. This is due to the fact that they produce light by heating a filament, which results in a significant amount of energy being lost as heat.
There have been efforts to improve incandescent shape efficiency, such as using different gas fills and coatings on the filament. However, due to the nature of the technology, it is difficult to significantly improve efficiency without sacrificing other important factors, such as color rendering and bulb lifespan.