Question

The voltages of different colors of LED lamp beads are _________.

Purple light ()

Blue light ()

Emerald green light ()

Green light ()

Yellow light ()

Orange light ()

Red light ()

Answer 1

Answer: Between 2V and 3.6V

Answer analysis: There is no direct fixed relationship between the voltage characteristics of LED lamp beads and their colors, because the voltage of LED is mainly determined by its manufacturing process and the semiconductor materials used, rather than the color.

However, in most cases, for common LED lamp beads (such as those used for indicator lights, lighting, etc.), regardless of the color, their forward voltage (i.e., the voltage required for the LED to emit light normally) is usually in a relatively close range.

For most low-power LED lamp beads (such as the common 5mm diameter LED), their forward voltage is usually between 2V and 3.6V. This range covers LEDs of various colors such as red, green, blue, and white (usually blue LEDs with yellow phosphors). It should be noted that the forward voltage of LED lamp beads from different manufacturers and models may vary, but it is usually within this range.

In addition, it is worth noting that although the forward voltage of LED lamp beads is relatively fixed, its operating current has an important impact on the brightness, life and other performance of the LED. Therefore, when using LED lamp beads, in addition to paying attention to their forward voltage, it is also necessary to select appropriate current limiting resistors or drive circuits according to specific application scenarios and requirements to ensure that the LED lamp beads can work stably and reliably.

In summary, there is no fixed difference in the voltage of different colors of LED lamp beads, but it mainly depends on their manufacturing process and the semiconductor materials used. In most cases, their forward voltage is between 2V and 3.6V.

Answer 2

Answer: Between 2V and 3.6V.

Answer analysis: The voltage of an LED lamp bead does not have a direct fixed relationship with its color, because the voltage is mainly determined by the manufacturing process and semiconductor materials of the LED. However, for common LED lamp beads (such as those used for indicator lights, lighting, etc.), regardless of the color, their forward voltage is usually in a relatively close range.

Generally speaking, for low-power LED lamp beads (such as common 5mm diameter LEDs), their forward voltage is roughly between 2V and 3.6V. This range covers a variety of colors of LEDs, including but not limited to purple, blue, emerald green, ordinary green, yellow, orange, and red.

However, it should be noted that although the forward voltage ranges of LED lamp beads of these colors are similar, the specific values ​​may vary slightly depending on the manufacturer, model, and batch. In addition, as LED technology continues to develop, new materials and manufacturing processes may change these voltage values.

Therefore, for LED lamp beads of a specific color, the exact forward voltage value should refer to the product's data sheet or the specifications provided by the manufacturer.

To summarize, for the colors you listed:

- The forward voltage of purple LED beads is roughly between 2V and 3.6V.

- The forward voltage of blue LED beads is also roughly between 2V and 3.6V.

- The forward voltage of emerald green LED beads is also in this range.

- The forward voltage of green LED beads is also the same.

- The forward voltage of yellow LED beads, orange LED beads, and red LED beads are also in the range of 2V to 3.6V.

Please note that these are only approximate voltage ranges, and the specific values ​​should be based on the product specifications.