“Dual in-line package” LEDs are based on a very early variant of the LED technology. Mostly with an output of 0.06 W. This type with 2 wires is probably the best known diode of the PCB solderable LEDs in different colors. They were / are installed in many electronic equipments e. g. in order to give a standby signal or to illuminate advertising material.

The luminosity decreases very quickly. After about 4,000 hours, the lumen loss is already over 20%. As a matter of fact, a DIP-LED only achieves a service life of 15,000 hours or less.

They were and are being used in electrical equipment to display e. g. the standby mode or for promotional advertising.

SMD means “Surfaced Mounted Devices”. SMD components have a very compact design. A SMD-LED component is soldered directly to a copper-clad surface of the board. This construction allows for higher lumen values (lm on average 50-80 / Watts) and a longer total service life. The SMD chips are always have a number which provides information about the lumen values and the dimension e.g. “3528” means a module with 3.5 x 2.8 mm dimensions.

The lumen loss is far less than with the DIP-LED. The service life is due to the excellent heat dissipation actually 50,000 hours or more.

Currently the most common LED chip in industrial and home lighting.

High-Power LEDs are chips with about 0.65 watts (usually operated with more than 20mA). In the lighting industry the 1-3W chips are often being used. They usually have more than 100lm / W per chip.

Depending on the manufacturer, the lifespan can be from 30,000 to 50,000 hours and more, with a low lumen decrease. However, this depends largely on the heatsink used and the technical solution for heat dissipation.

A commonly used chip for very flat lamp constructions with increased light output requirements. With respective lenses, a higher radiation angle is achieved.

COB is the abbreviation for a manufacturing process in microelectronics. For COB LEDs the semiconductor crystal is bonded directly onto the aluminum or ceramic board (PCB) and electrically connected to bonding wires. This allows for excellent heat dissipation and to pack more LED chips. This achieves a high lm / cm² density. In practice this means that with the COB technology even more compact lamp designs can be realized. With this 150-400lm / W and more can be achieved. COB LED come very handy for lamp manufacturers, as they can use ready-made components with fixed conditions.

Also 30,000 – 50,000 hours and more with much less lumen decrease.

These days a very popular LED chip for the lighting industry. Especially for industrial lighting.

OLED is a self-luminous thin-film component made of organic semiconducting materials that differs from conventional inorganic light-emitting diodes (LEDs). In that the electric current density and luminance are lower and no single-crystalline materials are required. OLEDs are cheaper to produce compared to inorganic LEDs.

With around 20,000 hours, the lifetime of OLEDs is currently worse than that of conventional light-emitting diodes, which is why use in the commercial lighting segment is still sporadic. But research is catching up. It is important for OLEDs to encapsulate oxygen and moisture so that the function of the organic material is not compromised. One advantage of this is that OLEDs are also interesting for outdoor areas.

Due to the flexibility of OLED and its extremely thin design, it is currently very interesting for manufacturers of displays, smartphones, monitors, etc. However, LED LCD models are significantly more durable. Due to the material properties, the use of OLEDs is almost inexhaustible. Experiments as flexible LED panels for lighting purposes, foil for windows that emit light at night, on wallpaper or as electronic paper have already been carried out and are gradually being launched as series products.