The operating voltage of SMD LEDs isn't a fixed value; it varies depending on the LED's color, size, and specific manufacturing process. Generally speaking, the operating voltage of common red, yellow, and green LEDs is typically between 1.8 and 2.4 volts, while blue and white LEDs can reach as high as 3.0 to 3.6 volts. This is because different colors of LEDs require different materials and manufacturing processes, resulting in varying operating voltages.
To determine the operating voltage of a specific LED model, it is recommended to consult the relevant product manual or contact the manufacturer directly for accurate information. When selecting a driving voltage, ensure that the selected voltage is within the LED's safe operating range to prevent damage or performance degradation due to overvoltage.