Black Body 3W IR Power LED 740nm 850nm 940nm

Black body package IR LED diodes are generally preferred over white body ones for security cameras due to optical performance and reduced interference. Here's why:

🔧 1. Minimized Internal Reflections

Black packages absorb stray IR light, preventing it from bouncing around inside the package.

White packages reflect IR light, which can cause:

Internal reflections

Optical crosstalk

Degraded beam shape or intensity

This is critical in surveillance, where clean, controlled IR illumination ensures better night vision clarity.

🔒 2. Improved Image Contrast & Reduced Halo

Black body IR LEDs reduce the risk of glare or "halo" effects on camera lenses or domes.

Helps maintain higher contrast in dark scenes, which is essential for facial recognition, motion detection, or license plate capture.

🎯 3. Directional Emission

Many black body IR LED packages are optimized for narrow-angle emission, ideal for directing IR light where the camera needs it.

White body materials might scatter the light more, reducing range and efficiency.

🔥 4. Better Thermal Management

Though color alone doesn't dictate heat dissipation, black surfaces radiate heat better, which can slightly help in cooling high-power IR LEDs-important in enclosed camera housings.

✅ Summary:

Feature	Black Body IR LED	White Body IR LED
Picture
Internal reflection	Low (absorbs IR)	High (reflects IR)
Image clarity	High	May cause glare/artifacts
Night vision performance	Better	Lower
Light direction control	More focused	More scattered
Preferred in surveillance	✅ Yes	❌ Rarely

Black Body 3W IR Power LED 740nm 850nm 940nm Pictures

 

SMD LED customised PCBA Boards Service by GMKJ

 

Black Body 3W IR Power LED 740nm 850nm 940nm dimensions

 

Black Body 3W IR Power LED 740nm 850nm 940nm Specs

Parameter Symbol Conditions Min Avg. Max Units Forward Voltage VF IF=350mA 1.40 -- 1.80 V Forward Voltage VF IF=700mA 1.60 -- 2.00 V Thermal Resistance Junction To Board RΘJ-B IF=700mA -- 6 -- °C/W Radiant Flux Φe IF=350mA 250   350 mW Radiant Flux Φe IF=700mA 500   700 mW Peak wavelength λp IF=700mA 845   855 nm Temperature Coefficient of Forward Voltage ∆VF/∆T IF=700mA −− -2 −− mV/°C Reverse Current IR VR=5V −− −− 10 μ A Viewing Angle 2Θ1/2 IF=700mA −− 140 −− Deg

Black Body 3W IR Power LED 740nm 850nm 940nm Applications 

✅Applications of Black Body 3W IR Power LED 740nm 850nm 940nm

 

🔦 740nm

Machine vision & inspection

ANPR (Automatic Number Plate Recognition)

Covert lighting with some red glow

Plant growth lighting (near-red spectrum)

---

🔍 850nm (most common for security)

CCTV & security cameras

Night vision illumination (slight red glow)

Facial recognition & biometric devices

Eye tracking & gesture control

IR floodlights for surveillance

---

🕶️ 940nm

Covert surveillance (invisible to human eye)

Mobile phone face unlock (e.g., Face ID)

IR remote controls

Driver monitoring systems (DMS) in cars

Indoor people counting & presence detection

CCTV & security cameras

ANPR (Automatic Number Plate Recognition)

Facial recognition & biometric devices

About GMLEDs

Certification available in GMLEDs

Guangmai Technology Certificaitions

CE

CE-LVD

FCC

ROHS

ISO9001

LM-80

For more details, please contact with us directly!

About GMLEDs/GMKJ

 

 

Shenzhen Guangmai Electronics Co., Ltd., established in 2009 with a registered capital of 30 million RMB, is an enterprise specializing in the manufacturing of semiconductor packaging devices. Its subsidiaries include Shenzhen Guangmai Technology Co., Ltd., Guangmai Technology (Hong Kong) Co., Ltd., and Shenzhen OKAY Lighting Co., Ltd., forming a powerful corporate group. Guangmai Electronics is a national high-tech enterprise and a specialized and new enterprise in Shenzhen. It has been ranked among the top 100 in China's LED industry and has been awarded honors such as Shenzhen Standard Application Demonstration Unit and Guangdong Integrity Demonstration Enterprise.

 

Production Line

 

GMKJ Exhibitions

 

GMKJ Team Tourism

 

GMKJ Sales Office