T8 LED lamp and features of its application

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.

General information

What is it

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.

Where and how T8 is used

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.

Design features of the T8 luminaire

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.

Detailed specifications

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:

• T8 LED lamps 1. 2 meters.

• LED devices for lighting T8 0.6 meters.
• There are also models with a length of 1.2 meters.

By the type of flask they are:

• Transparent (light loss 0%).

• Semi-transparent (light loss from 5 to 10%).
• Opaque (light loss 15 to 20%).

Consider all the pros.

Advantages

All the advantages are as follows:

1. One of the reasons for the popularity of LED lamps is their durability, and even much longer service life than classic incandescent lamps. In addition, these light sources are perfectly combined with each other.

   For example, the T8 glow is complemented by LED strips.

2. Electricity consumption and environmental friendliness. They consume much less electrical power compared to other light-type products. LEDs are still quite environmentally friendly, because they do not contain mercury and other harmful components.
3. Energy efficiency.

   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.

4. Impact resistance.LED, which has modern polycarbonate-based components, is difficult to damage. This will distinguish them from incandescent lamps and fluorescent lamps, which can be fragile.

5. Focus. The LED body can be specially designed to focus light. For huge LEDs, total internal reflection lens housings are quite often used with a similar effect. But when a huge amount of light is involved, the lens is usually directed towards the same object.
6. LED type lamps are also renowned for their resistance to various temperatures.

   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.

7. These lamps do not suddenly fail, as is the case with classic incandescent lamps, and they constantly lose brightness as a result of crystalline degradation. The duration or even longevity of LED type luminaires greatly reduces additional costs and expenses.

Now it's worth considering the cons.

Disadvantages

It will not be honest to keep silent about the disadvantages:

1. A significant drawback is the high cost.
2. Voltage sensitivity. The LED must be energized above the threshold and the electric current must be higher than the nominal. Lamp amperage and duration may vary due to voltage variations, although this is commonly found in Chinese imitations.

   So, these models require a power supply with a regulated current type.

3. Electrical polarity. Unlike simple incandescent lamps, which operate regardless of the polarity of the electrical type, LEDs can only function if the electrical polarity is correct. Rectifiers can be used to automatically match the polarity of a place with LED-type devices.

4. 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.

5. Decreased efficiency.

   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.

6. Danger from blue light.

   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.

7. Blue light pollution. Due to the fact that those cool white LEDs with a huge color temperature level emit much more blue light than standard light-type fixtures like sodium lamps or fluorescent-type fixtures.

   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.

How to choose

So, before buying, you should consider the following points:

• Packaging must be clean and dry not have any damage.
• The package must have a barcode (there is still a QR code).
• Correct spelling of the product name.

• All specifications are clearly marked on the box.
• There must be a passport or instruction inside the box.
• If possible, check the quality of the device without leaving the building market.

Now let's look at the connection features.

How to connect a 220 V lamp

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.