1. 0603, 0805, 1210 and 5050 refer to the size (British / Metric) of LED, the light-emitting element used on the LED strip. The following is a detailed introduction of these specifications:
2. 0603: converted to metric system, it is 1005, which means that the length of the LED element is 1.0mm and the width is 0.5mm. The industry abbreviation is 1005, and the British system is 0603
3. 0805: converted to metric system, it is 2125, which means that the length of LED elements is 2.0mm and the width is 1.25mm. The industry abbreviation is 2125, and the British system is 0805
4. 1210: converted to metric system, it is 3528, which means that the length of LED elements is 3.5mm and the width is 2.8mm. The industry abbreviation is 3528, and the British system is 1210
5. 5050: This is a metric name, which means that the length and width of LED elements are 5.0mm and 5.0mm respectively. Industry abbreviation: 5050






