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LED codes such as 2835, 3030, 3528, 4014, 5050, 5630, etc., are often found in the product details of LED strip lights, LED bulbs, and other LED lighting products. What do these numbers mean? What is the difference between them? This article will give you an answer.
These codes are actually models of SMD LEDs. SMD LED (Surface Mounted Device Light Emitting Diode) is a solid-state semiconductor device that directly converts electrical energy into light energy. Due to its characteristics of small size, energy saving, long service life, and high brightness, it's often used as a light source in LED light strips, bulbs, and other LED lamps. The SMD LED codes are named according to the length and width of the LEDs. For example, the length and width of the SMD 5630 LED are 5.6 and 3.0 mm respectively. The larger the size, the LEDs can accommodate more chips, and have better heat dissipation effect. Compare with 5050, SMD 2835 can only integrate one light-emitting chip because of its small size, while the SMD 5050 can hold three chips.
However, the larger the size does not necessarily mean the higher the brightness. The main determinants of the brightness of the LED are the size of the light-emitting chip and its own power. For example, although RU5630G and RN5630 these two LED tape lights are used SMD 5630 LEDs, the rated power of former's LEDs is 0.5w, while that of the latter is 0.2w. From the outside, there is almost no difference between the two, but the former can reach 3600lm/m, while the latter is 2100lm/m.
In fact, the quality of the LED is determined by the raw material and producing process, not the type or size. So the most essential difference between these codes is the size and internal capacity. The lower power LEDs, such as 2835, 3528, 4014, etc., can be arranged more densely so that the light of its finished products will be denser and more uniform. Larger-sized LEDs, such as the 5630, 5050, 7030, etc., can accommodate larger chips, providing higher brightness for commercial and industrial lighting.
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