What is the difference between 850nm and 940nm IR LED?

Have you ever wondered what the difference is between 850nm and 940nm IR LED? Well, you're not alone! Many people are confused about these two types of infrared light sources, but don't worry, we're here to help clear things up for you

Have you ever wondered what the difference is between 850nm and 940nm IR LED? Well, you're not alone! Many people are confused about these two types of infrared light sources, but don't worry, we're here to help clear things up for you.

Let's start by looking at the basics of infrared light. Infrared light is a type of electromagnetic radiation that is invisible to the naked eye. It is commonly used in things like remote controls, night vision cameras, and security systems. Infrared light is divided into different wavelengths, with 850nm and 940nm being two of the most common.

1. Wavelength

The main difference between 850nm and 940nm IR LED is the wavelength of the light they emit. The number refers to the length of the light wave in nanometers. 850nm LEDs emit light with a wavelength of 850 nanometers, while 940nm LEDs emit light with a wavelength of 940 nanometers. This difference in wavelength can have a significant impact on the performance and applications of the LEDs.

2. Visibility

One of the most significant differences between 850nm and 940nm IR LEDs is the visibility of the light they emit. 850nm LEDs emit a faint red glow that is sometimes visible to the naked eye, especially in low light conditions. On the other hand, 940nm LEDs emit light that is completely invisible to the human eye. This makes them ideal for applications where stealth or covert operations are required.

3. Range and Power

Another key difference between 850nm and 940nm IR LEDs is their range and power. In general, 940nm LEDs have a longer range and higher power output than 850nm LEDs. This makes them a better choice for applications where long-range illumination is required, such as surveillance cameras or security systems.

4. Applications

850nm and 940nm IR LEDs are used in a wide range of applications, including surveillance, security, communications, and medical imaging. 850nm LEDs are often used in applications where a small amount of visible light is acceptable, such as remote controls or motion sensors. On the other hand, 940nm LEDs are preferred in applications where stealth and invisibility are crucial, such as night vision cameras or covert surveillance systems.

In conclusion, while 850nm and 940nm IR LEDs may seem similar, there are some important differences between the two. The choice between the two will depend on the specific requirements of your application, such as visibility, range, and power output. Hopefully, this article has helped clarify the distinctions between these two types of IR LEDs for you.

If you are looking for high-quality IR LED products, consider checking out IR COB LEDs or COB LEDs. For more information on these products, suppliers or a specific inquiry, please visit their websites or contact them directly for more information.

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