In the last post, we told you how the luminous flux it is important for the efficiency of the lamp, your relationship with the power and the voltage. There are many other information accompanying the package and they say a lot about the product that you find on the shelves.
According to HETONGDIY to understand what are the other lamp technical information and that she influences on your choice:
Color temperature: Is the color of the light emitted by a source, whose unit of measurement the kelvin (K). At low temperatures the color hue of the light tends to red, which is known as warm light, while in the high temperatures of the light color becomes lighter, being defined as cold light.
The color temperature warm yellow, is shown to convey feeling of relaxation, ideal for rest, as room and dining room. The colder light, bluish or white (as seen in the photo above packing), is good for environments where the activity is constant, because it passes the sense of encouragement. Some examples are for cooking, desktop and Office.
CRI (Color rendering index): All the colors we see suffer influence of illumination. The reference light with perfect color rendition is sunlight, free of atmospheric interference, which assigns the graduation of 100, on a scale from 0 to 100. The floodlights are also classified as 0 to 100 according to your fidelity to reproduce colors. The closer the 100 is, the better the your color rendition.
Power factor: The power factor is a ratio between active power and apparent power or total. This relationship is possible whether the consumer is consuming energy properly. Motors, transformers and equipment consumer units are force to electricity, which is used in two distinct forms: reactive power and active energy.
The reactive energy does not perform actual work, but it’s necessary and consumed in the generation of electromagnetic field responsible for the operation of motors, transformers and generators in its coils. This energy must be as small as possible, as excess reactive energy requires, for example, larger conductor section and higher capacity transformers in addition to cause losses for warm ups and voltage drop.
Already active energy is the one that actually performs the tasks, is what makes light bulbs and motors work.
The greater the consumption of reactive energy, to the same active power consumption, lower is the power factor. The law determines that the power factor must be kept as close as possible to the unit (1), but allows a minimum value of 0.92. Always try to increase the power factor to make the most of the electrical installations.
Bulb:Identifies the format of the lamp bulb. The example below is the 3U, which refers to as the bulb is based, like an inverted U, hold the base up. Are 3 ways like this that make up the lamp.
Nominal current: electrical current, usually expressed in amperes (A) or quiloampères (kA), which will be observed (or measure) in a given appliance, when this is operating properly. This parameter is set by the manufacturer of the equipment. It is also used to express the maximum capacity of a given device, and therefore a limit of electrical current that can be required of equipment without being damaged.
Being the nominal voltage of the electrical equipments usually constant, the current is used as a parameter indicating that power is being developed or required. It is common to use the current measurement for this purpose because it is more easily measured than the power.
Ambient Temperature: Each lamp is designed to work in a room temperature, it must be respected, because the fact the lamp work with higher or lower temperature than specified might compromise the efficiency and functioning of the same. For example, a light bulb, whose specification “TA” is from 0° C to 45° C means that she won’t be able to run up to 45° C and below 0° c.
Casting Temperature: Refers to the working temperature of the lamp, i.e. the temperature generated into the sheath or lamp circuit. The higher the lamp power the greater the temperature in the enclosure. This is a specification that must be considered in all installations, because depending on the thermal temperature generated by the light source, can affect not only your operation, but the environment in which they find themselves. It is necessary to check the heat dissipation of the lamps and the facility as a whole.
Time to reach 80% of the nominal luminous flux: Corresponds to the time that the lamp takes to reach 80% of the luminous flux indicated on the packaging.
Average Life: Concept used to measure, in hours, the durability of the lamp.