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850nm Vs. 940nm lumière LED infrarouge: des différences?


An infrared light emitting diode referred to as IR LED, emits invisible light ranging from 780nm-1mm. The light emitting from infrared LED features unnoticeableness and energy efficiency, allowing this LED technology to be applied to different industries, such as security.


There are infrared LED wavelengths on the market, such as 730nm, 810nm, 830nm, 870nm, and 905nm IR LED. However, the most common ones are 850nm IR illuminators and 940nm infrared LED light s, which differ from each other in various ways. So here, we will compare these two infrared LED lights. Please read on.



Differences Between 850nm and 940nm IR Lights

l Wavelength: 850nm infrared LED features a shorter wavelength than 940nm, which is the most obvious difference.

l Red glow: 850nm infrared LED gives off a slight red glow at the LED light source and can be noticed if closely observed. However, the 940nm IR illuminator is completely invisible, meaning that there is no light on the surface of the red light, and is more hidden.

l Illumination area: 850nm IR illuminator has the edge over the 940nm infrared LED as the former covers 50% more illumination areas.

l Radiation intensity: The radiation intensity of the 850nm infrared LED is about two to three times higher than that of the 940nm IR light.

l Brightness: Brightness will be higher if the radiation intensity value is higher, so 850nm light features high brightness than the 940nm IR illuminator.

l Lifespan: 850nm infrared LED enjoys a longer lifespan than 940nm.


Applications of 850nm and 940nm Infrared LED Light

l 850nm infrared LED: Given the advantages in extended coverage and camera sensitivity, the 850nm wavelength is generally the best choice for most security applications, face recognition, automobile sensor, and 3D sensor. However, it is not suitable for covert surveillance applications because it emits a slight red glow.




l 940nm infrared LED: When invisibility is a must in some applications, such as surveillance, touch screen, proximity sensing, blood oxygen detection, and face recognition, La lumière 940nm IR est une meilleure option. C’est parce qu’il ne emporte pas une lueur rouge slight.



Choosing 850nm or 940nm IR Lights

It is important to consider their differences when purchasing 850nm or 940nm IR controllers for LED lights. Power consumption, illumination distance, and performance (such as water resistance, anti-dust, etc.) should also be considered when choosing 850nm or 940nm IR lights. But overall, these 850nm and 940nm infrared LED lights have their advantages and should be chosen based on your project.


850nm and 940nm Infrared LED Light From Refond

When purchasing 850nm and 940nm infrared LED, the top priority is to choose a reliable supplier. As a professional LED manufacturer, Refond has always been devoted to developing state-of-the-art infrared LED products, Y compris ceux à 850nm et 940nm tailles. Voyons certains de nos contrôleurs pour les lumières LED.


850nm Infrared LED:

l 2835 Lens


940nm Infrared LED

l 0603 received

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l 0603 launch



IR LED at Other Wavelength (830-970nm)

l 3030 Lens



l 3535 Lens


Why Do You Choose Refond

Now that you can tell the differences between 850nm and 940nm infrared LED, Il est temps d’obtenir des produits de qualité d’un fournisseur fiable IR LED. Parmi beaucoup de fournisseurs de lumière LED sur le marché, Refond stands out. Here are what we can offer if you choose our 850nm and 940 infrared LED light products.


l Multi-packaging platform and professional package design capability




L une gamme complète d’angles de visualisation de 30° à 130 °.



l Leadframe with high quality and cost-effectiveness.



L une ligne complète de produits avec une capacité de production mensuelle de 1.2kk



L solutions personnalisées selon les besoins du client



Contact us for more details!

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