A spiral-type compact fluorescent lamp. This style has slightly reduced efficiency compared to tubular fluorescent lamps, due to the excessively thick layer of phosphor on the lower side of the twist. Despite this, it has become one of the most popular types among North American consumers since its introduction in the mid 1990s.
A compact fluorescent lamp (CFL), also known as a compact fluorescent light bulb (or less commonly as a compact fluorescent tube [CFT]), is a type of fluorescent lamp. Many CFLs are designed to replace an incandescent lamp and can fit in the existing light fixtures formerly used for incandescents.
A photograph of various lamps illustrates the effect of color temperature differences (left to right): (1) Compact Fluorescent: General Electric, 13 watt, 6500 K (2) Incandescent: Sylvania 60-Watt Extra Soft White/Warm White (3) Compact Fluorescent: Bright Effects, 15 watts, 2700 K (4) Compact Fluorescent: Sylvania, 14 watts, 3000 K.
As we can see on the left picture , there are different kind of energy consumption, and have different color from the sources. I think that we need to determining what atmosphere we want to attends before we have to design the light. For example, the warm color (2700-3000K) are good for houses, café, restaurant, boutique, residences and thematic office. And the cold color (4000-6500K) are good for hospital, general office, also sport field (indoor & outdoor).
So, which one we prefer to choose to get high quality of light, but also more efficient in energy consumption ?
For a given light output, CFLs use between one fifth and one third of the power of an equivalent incandescent lamp. Since lighting accounted for approximately 9% of household electricity usage in the United States in 2001, widespread use of CFLs could save as much as 7% from household usage.
If incandescent lamps are replaced by CFLs the heat produced by the building's lighting system will be reduced. At times when the building requires both heating and lighting, the building's central heating system will then supply the heat. If the building requires both illumination and cooling, then CFLs will use less electricity themselves and will also reduce the load on the cooling system compared to incandescent lamps. This results in two concurrent savings, and since most air conditioners are also electrically powered, they are directly comparable.
A compact fluorescent lamp (CFL), also known as a compact fluorescent light bulb (or less commonly as a compact fluorescent tube [CFT]), is a type of fluorescent lamp. Many CFLs are designed to replace an incandescent lamp and can fit in the existing light fixtures formerly used for incandescents.
A photograph of various lamps illustrates the effect of color temperature differences (left to right): (1) Compact Fluorescent: General Electric, 13 watt, 6500 K (2) Incandescent: Sylvania 60-Watt Extra Soft White/Warm White (3) Compact Fluorescent: Bright Effects, 15 watts, 2700 K (4) Compact Fluorescent: Sylvania, 14 watts, 3000 K.As we can see on the left picture , there are different kind of energy consumption, and have different color from the sources. I think that we need to determining what atmosphere we want to attends before we have to design the light. For example, the warm color (2700-3000K) are good for houses, café, restaurant, boutique, residences and thematic office. And the cold color (4000-6500K) are good for hospital, general office, also sport field (indoor & outdoor).
So, which one we prefer to choose to get high quality of light, but also more efficient in energy consumption ?
For a given light output, CFLs use between one fifth and one third of the power of an equivalent incandescent lamp. Since lighting accounted for approximately 9% of household electricity usage in the United States in 2001, widespread use of CFLs could save as much as 7% from household usage.If incandescent lamps are replaced by CFLs the heat produced by the building's lighting system will be reduced. At times when the building requires both heating and lighting, the building's central heating system will then supply the heat. If the building requires both illumination and cooling, then CFLs will use less electricity themselves and will also reduce the load on the cooling system compared to incandescent lamps. This results in two concurrent savings, and since most air conditioners are also electrically powered, they are directly comparable.
No comments:
Post a Comment