Technical characteristics of LED T8 lamps
LED-type products gradually began to occupy a leading position in the lighting equipment market. LEDs are characterized by low electrical consumption, impact strength and durability. In this article, we will explain what it is, you will also find the main technical characteristics, design features, what types there are and how not to make a mistake when choosing products. More pros and cons are indicated.
Additionally, we have collected diagrams for connecting LED TV lamps.
The LED (namely LED) is a super-bright semiconductor diode. It will emit light when an electric current is passed. When it starts to go through the 2-pin connector. In order for this to be possible, certain conditions must be met. The real width of the forbidden LED region should be close to the energy of light quanta in the visible range.
There is a huge possibility of light emission during the recombination of electro-hole pairs. It turns out that the semiconductor crystal itself should not have significant defects or drawbacks, due to which the recombination process will ultimately not give radiation. In order to comply with such conditions, it is required to make special multilayer heterostructures. Such structures are a new technological stage of LEDs. Initially, such samples were built into metal cases.
They will have some similarities with transistors, and also with a glass window or lens for the output of the light flux.
Modern LED-type indicators are built into transparent plastic molded cases. They are rectangular or tubular and are often tinted to match the color of the device. Infrared lighting devices can be colored to block visible light. But the complex shells of the devices are adapted for efficient heat removal in more powerful devices.
Such patch LEDs greatly reduce the size of the package, and the very bright diodes required for fiber optic cable applications are typically supplied via an optical connector.
Such devices for light are widely used in shops, shopping centers, eateries, shops, schools, cafes, administrative, municipal and office premises ... Usually they are installed in suspended ceilings, and T8 is often used together with Armstrong LED lamps for more varied and high-quality lighting of the space.
The components of the luminaire are as follows:
- G13 base (made of PM polycarbonate plastic, and gray - this power is for use in one way power supply, and white is for two way power supply).
- The body is made of an aluminum profile, which is powder painted.
- The shade is made of plastic, polymethyl acrylate, transparent, matt or white.
- Power supply unit (we are talking about a constant current source, and the power factor is from 0.8 to 0.
9).
- LED PCB - has double diode line, excellent heat dissipation, and diode life is 50,000 hours.
Now about the characteristics.
Technical parameters
On the example of this model, as Eurolamp LED NANO T8 9W 6500K, you can learn about the standard parameters and characteristics of the luminaire. Most of the parameters are the same as those of other LED lamps such as Gauss.
Still, the parameters may differ depending on the manufacturer and the model itself.
- Operational period up to 50,000 hours.
- Dimensions 60 * 3 cm.
- Analogue of incandescent lamp power 90 W.
- Bulb type and color - opaque matte (there are also translucent and transparent).
- Brightness up to 880 lm.
- Lamp base of LED type T8 - G
- Color temperature 6500 K (bluish white). There are also models with a color temperature of 2800 K (warm white) and 4000 K (neutral white).
- Operating voltage is from 220 to 240 V.
- Power consumption is 9 W.
- The luminaire has a linear shape.
Let's talk about the species.
Varieties
So, we have already examined the technical characteristics of the T8 LED lamp, and now let's see all types of devices. They are divided in length into:
By the type of flask they are:
Consider all the pros.
Advantages
All the advantages are as follows:
For example, the T8 glow is complemented by LED strips.
It is much larger than all other light sources - they reach absolute brightness almost instantly, without the need for warming up. The maximum luminous efficacy can be up to 135 lm / W.
The T8 LED lamp can withstand low temperatures, and will also function in extremely harsh weather conditions with the required level of protection. Under normal operating conditions, they are capable of operating from 50,000 to 100,000 hours, considering that LEDs do not have filaments that often deteriorate. Such advantages increase the lamp life up to 10 years or more.
Now it's worth considering the cons.
Disadvantages
It will not be honest to keep silent about the disadvantages:
So, these models require a power supply with a regulated current type.
Light quality.
Certain cool white LEDs have spectra that can be drastically different from a wide variety of light sources such as incandescent bulbs and the sun. Accordingly, a peak at 460 nanometers and a further dip at 500 nanometers can often lead to different perceptions of objects when illuminated with cool white light. This is due to metamerism, when red surfaces are much worse illuminated by this type of glow. And yet, the color rendering properties of fluorescent devices are often exceeded even by LEDs of this type.
The efficiency of light diodes decreases in proportion to the increase in current. Heating will likewise increase with increasing electric current. This will shorten the service life.Such effects impose certain restrictions on the current through the LED when there is a huge power level.
There are concerns that very bright blue LEDs, and also light white LEDs, may exceed the safe limit of blue light hazard. This limit is defined in the ANSI / IESNA RP-27 eye safety standard. 1-05: Recommended use for photobiological safety of lamp systems and lamps.
The wavelength dependence of Rayleigh scattering results in more cold light pollution from LED.
Consider the features of choosing a device for a house / apartment.
So, before buying, you should consider the following points:
Now let's look at the connection features.
Connecting a T8 LED lamp has several scenarios.
Wiring diagram for 10 watts. In order to install the LED tube in the T8 device, you need to remove the starter (that is, the starter). If the LED type lamp has a built-in driver type, then only direct power is required. There is a choke in the circuit, and a certain part of LED tubes are combined with the choke. They are able to function perfectly without removing it, in which case you only need to remove the starter.
The selection and connection of such lamps is a rather responsible process, and in order not to be mistaken and not be deceived, you need to know about all the main parameters and characteristics of the device.
Posted By: Work Style |04, Nov 2020
Posted By: Work Style |04, Nov 2020
Posted By: Work Style |13, Nov 2020
Posted By: Work Style |11, Nov 2020
Posted By: Work Style |04, Nov 2020