Since LEDs are small, robust, reliable and extremely high-efficiency light sources, they are used in almost any application where light is needed. Since the needs are different in each application, the LEDs used also gain variety. One of them is power classification.
Since LEDs are small, robust, reliable and extremely high-efficiency light sources, they are used in almost any application where light is needed. Since the needs are different in each application, the LEDs used also gain variety. One of them is power classification.
LEDs are divided into three different categories according to their power; Low-Power, Mid-Power and High-Power.
Power is found mathematically by multiplying voltage and current. For example, a 3 V LED consumes approximately 1 W when driven with a current of 350 mA.
LEDs with power between 0.05 W and 0.10 W are in the Low-Power class. LEDs with a power range of 0.25 W to 0.50 W are known as Mid-Power, those with a power range of 1 W to 3 W are known as High-Power LEDs.
Low-Power LEDs have low brightness, so they are often used as indicator lights. For example, the power light that shows computers running is a Low-Power LED.
Mid-Power LEDs offer high efficiency light with moderately low power consumption. These LEDs, which have a high market share, are used in various applications such as taillights of vehicles as well as indoor and outdoor lighting fixtures. Packaged LEDs such as 2835, 3030, 5050 and 5630 used on LED light strips are Mid-Power LEDs. Mid-Power LEDs are used in almost all E27 or E14 socket LED lamps used in homes.
High-Power LEDs are frequently used in new generation lighting applications. With these LEDs with high light output, it is possible to produce high brightness light by using a small number of LED chips. While it was necessary to use hundreds of LEDs to make a 30 W LED lamp in the past, it was sufficient to use 10 LEDs thanks to High-Power LEDs.
Power LED definition is generally used for LEDs with a power of 1 W or more. However, as explained above, LEDs (although there is no written international standard defining categories) are basically divided into 3 categories.
The choice of LED in solid state lighting systems affects important parameters such as cost, performance, thermal management and life.
